In my consultations, the question about permanence usually comes straight after the question about price. That is understandable. Patients want to know whether they are paying for a lasting change or a short-lived improvement. Unfortunately, the answers they find online are often too simple. Either the result is described as permanent, or every non-surgical treatment is dismissed as temporary. The reality sits between those two positions.

I have performed AGNES and Secret RF eye bag treatments for more than 10 years and have followed over 500 patients. What I tell them is straightforward. The fat treated during the procedure is genuinely reduced; it does not simply grow back. But treatment does not freeze the face at its current age. The tissues around the eye continue to change, and that distinction is the key to understanding how long the result lasts.

What happens to the treated fat

A true eye bag forms when the lower eyelid fat pads protrude through a weakened orbital septum. In a mild Grade 1 to 2 case, AGNES delivers radiofrequency energy through micro-insulated needles into the protruding fat compartment. The targeted fat cells break down and are cleared by the body over the following weeks. Secret RF is then used to support collagen remodelling in the skin above, helping it settle over the flatter contour.

Once those fat cells have been destroyed and cleared, they are gone. Adult fat cells in a localised compartment do not replace themselves in the way skin cells do. So, if we are talking only about the fat that was treated, the reduction is permanent. However, patients rarely ask about just that. They want to know whether the area will always look exactly as it does after treatment. That is a different question.

Ageing does not stop after treatment

The orbital septum may have weakened because of age, heredity or both. Reducing the fat that has already moved forward does not stop the septum from changing. Years later, remaining or deeper fat may begin to protrude. The lower lid also loses support as soft tissues descend and the underlying bone changes. When a bulge develops again, it is usually not the old eye bag growing back. It is the ageing process creating a new one.

This is why I usually describe the result as lasting three to five years, although many patients do well for longer. That estimate comes from our own follow-up, not a marketing brochure. Younger patients with firm skin often remain pleased with the result well beyond five years. Someone with a strong hereditary tendency may notice change sooner.

Skin may become the main issue later

Removing a bulge is only part of the aesthetic result. The skin must also sit smoothly over the new contour. A patient treated at 38 may still have firm lower eyelid skin, yet by 48 the problem may be loose, crepey skin rather than protruding fat. AGNES was not designed to remove excess skin. At that stage, a procedure such as a pinch blepharoplasty may be more appropriate. The original fat reduction can still be present even though the patient now needs help with a different problem in the same area.

Not every recurrence is caused by fat

The under-eye area changes from day to day. Poor sleep, allergies, alcohol, salt, fluid retention and weight fluctuation can all make it look puffy. I occasionally see patients who are certain that their eye bags have returned, but examination shows that the fat pads remain flat. What they are seeing is fluid. That matters because treating fluid retention as though it were protruding fat will not help—and sometimes the useful intervention is as simple as reducing dietary salt.

No option stops the ageing process

Even surgery should not be sold as a way of stopping future change. It removes or repositions fat more directly, but the patient still ages and the lower eyelid skin may still loosen. The useful comparison is not “permanent” versus “temporary”. It is how each treatment works, how long its result usually lasts and what the patient may need later.

Who tends to keep the result longest

The pattern in our follow-up is fairly consistent. The best candidates have mild Grade 1 to 2 eye bags and firm lower eyelid skin. Treating the problem before the septum has weakened significantly also helps. I do not compromise on skin quality: if the skin is already loose, I recommend surgery instead. Because our centre offers scarless eye bag removal and pinch blepharoplasty as well as non-surgical treatment, there is no reason to push AGNES when it is not the right choice. Stable weight and sensible daily habits help, but expectations matter just as much. Patients who understand the likely three-to-five-year timeframe are usually satisfied. Those who have been promised a result for life are being set up for disappointment.

What if the result changes later?

When a patient returns several years later, the next step depends on what I see. Often, no further treatment is needed: the change is minor, and the patient still looks better than before the original procedure. If a small new protrusion has developed and the skin remains firm, a maintenance AGNES and Secret RF session may be worthwhile. Subsequent sessions at The Clifford Clinic are priced at $1,800. If the eye bags have progressed to Grade 3 or 4, or loose skin has become the main problem, repeating a non-surgical treatment is unlikely to be good value. Scarless eye bag removal, with a pinch blepharoplasty where necessary, may then be the better answer. Since we provide both approaches, I can give that advice without trying to fit every patient into the same treatment.

Looking after the result

Nothing stops ageing, but some habits make the lower eyelid age faster. Repeated eye rubbing stretches the thin skin and puts additional strain on the septum, so allergies should be treated and makeup removed gently. Daily sun protection helps because ultraviolet exposure accelerates skin laxity. Keeping weight reasonably stable also reduces changes in facial fat. Salt and alcohol can worsen fluid puffiness, which may obscure an otherwise good structural result. I also encourage patients to attend their scheduled reviews. Small changes are easier to manage while conservative treatment is still appropriate.

The honest answer

AGNES and Secret RF do more than disguise an eye bag: they reduce the protruding fat and improve the contour above it. The treated fat does not simply return. What I cannot honestly promise is that the patient will never again notice a problem beneath the eyes. The face continues to age, and skin that is firm at 40 may be loose at 55. Permanence therefore depends on what is being discussed. The reduction in the treated fat is lasting; the appearance of the whole under-eye area will continue to evolve. Any clinic answering this question without first examining the skin and grading the fat pads is giving a sales answer, not a medical one.

Frequently asked questions

Do eye bags come back after AGNES treatment? The fat treated by AGNES is cleared and does not simply regrow. A new protrusion can develop as the tissues continue to age. In our experience, results commonly last three to five years and often longer in younger patients with firm skin.

Is one session enough? For many mild Grade 1 to 2 cases, yes. A second session may be useful when the fat pad is larger, or the tissue response is incomplete. I make that decision at review rather than assuming every patient needs the same course.

Does surgery last longer? Usually, as surgery removes or repositions the fat directly and rarely needs to be repeated. It still does not stop ageing, and loose skin can develop later.

My eye bags look as though they have returned after two years. What should I do? Have the area examined before deciding what has happened. The puffiness may be fluid, a small new protrusion or increasing skin laxity. Each has a different treatment.

Can I keep repeating non-surgical treatment instead of having surgery? Not indefinitely. Once the eye bag has progressed to Grade 3 or 4, or the skin is loose, further non-surgical sessions usually offer diminishing returns. Surgery is then likely to be both more effective and better value.

Will the treated area age naturally? Yes. AGNES removes existing fat rather than adding material, so there is nothing to migrate or gradually dissolve. The area continues to age with the rest of the face.

Should I wait until the eye bags become worse? Usually not. Mild Grade 1 to 2 eye bags with firm skin are the cases in which non-surgical treatment tends to work best. Waiting may allow the problem to progress until surgery becomes the better option.

Where can I have the problem assessed? My team at The Clifford Clinic provides doctor-led assessment and offers both AGNES with Secret RF and scarless surgical treatment. That means the recommendation can be based on the anatomy rather than on a single procedure.

Dr Gerard Ee MBBS MRCS DP Dermatology is the founder and medical director of The Clifford Clinic and The Clifford Surgery in Singapore. He has performed AGNES and Secret RF non-surgical eye bag treatments for more than 10 years, treating over 500 eye bag patients. His centre is the only one among the commonly compared aesthetic clinics to offer both non-surgical and surgical eye bag removal, including scarless eye bag removal and pinch blepharoplasty. This article reflects his clinical opinion, is intended as general information and does not replace a medical consultation.

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A common misconception that patients have is that dermal face fillers can fix all age-related problems, including eye bags. To save some readers a lot of money and regret, I would like to clarify right off the bat that fillers do not remove eye bags.

Fillers do not work as they add even more volume to an eye bag that is already caused by excess volume. An eye bag occurs when lower eyelid fat pushing forward through a weakened orbital septum. Adding volume next to, under or around a fat bulge does not make the bulge disappear. At best, it camouflages the transition gradient of the bulge. At worst, it makes the entire under-eye area look heavier, puffier and visibly lumpy when the patient smiles. The latter is unfortunately what I regularly see in my consultation room.

After more than 10 years treating the under-eye area, I noticed that this correctable mistake is most commonly made when a true eye bag is treated as if it were a tear trough. In this article, I will explain when it is appropriate to use fillers, when using fillers may backfire, and what to do if you are unhappy with your filler results.

When under-eye filler is the right treatment for you

When patients are dissatisfied with the results of fillers, the problem is usually not the product itself, but the diagnosis. Incorrect or improper diagnosis can lead to fillers being inappropriately used. A filler injection is generally the appropriate tool only when the under-eye problem is a deficit of volume.

• A true tear trough is ahollow groove running from the inner corner of the eye toward the cheek. The groove casts a shadow that reads as tiredness. A conservative amount of filler placed correctly in this groove can effectively soften the shadow.
• Mid-cheek deficiencyis a condition where the cheek below the eyelid has lost volume or projection. This results in the under-eye losing its support and looking sunken. Restoring the cheek, often without touching the eyelid itself, improves the appearance of the under-eye area.

In both situations listed above, the anatomy of the under-eye area is concave. Filler is thus effective because it can restore the volume of the concave area.

When filler is the wrong treatment for you

Filler is the wrong tool to use when the anatomy of the under-eye area is convex, such as when there is a bulge of protruding fat. The following happens when a true eye bag is treated with filler.

1. The eye bag is exacerbated, not hidden.While it may seem logical to fill in the grooves under the eye bag so that the bulge blends in, in practice, this results in the total volume of the area increasing as the under-eye is now carrying the original fat pad plusthe added filler. In my experience, using filler does not hide the eye bag, it usually makes it worse.
2. The under-eye area looks heavier.The lower eyelid is one of the least forgiving areas of the face to treat due to the particularly thin skin and soft tissue present in this area. Any changes in the volume of the under-eye area can dramatically alter its appearance. Injecting filler under a fat pad thus often results in a defined eye bag being converted into a broader zone of puffiness.
3. It causes the appearance of a lump under the eye when smiling.This is due to the filler bunching when the cheek pushes up and compresses the under-eye area. Patients describe this lump as a shelf or ridge that appears in photos whenever they smile. While the results may look acceptable at rest, I do not recommend fillers for treating under eye bags as a treatment that fails the smile test is not a successful treatment.
4. Filler in the under-eye area can persist and migrate.Hyaluronic acid filler under the eye attracts water and can persist for far longer than the commonly quoted 9 to 18 months, a slightly overfilled tear trough can thus become progressively puffier over months. Additionally, the filler may migrate. Due to this, the end result could be an under-eye that looks worse than it originally did a year after filler treatment.
5. Correction may cost more than fixing the eye bag right the first time.The fix to a botched treatment usually involves dissolving the filler with hyaluronidase, waiting for the tissue to settle, re-examining the anatomy, and then performing fat reduction. Every step in the correction process has a cost that the patient has to pay on top of the original filler price.

The simple way to understand it

Most patients suffer from a mild eye bag with a groove beneath it. In my experience, the most appropriate way of dealing with this combination problem is addressing the protruding fat first with AGNES + Secret RF for mild Grade 1–2 eye bags, or eye bag removal surgery for advanced eye bags with loose skin, and then reassess whether any groove remains. Very often, once the fat bulge is gone, the trough largely disappears with it.

How I decide what treatment my patient needs

I have treated more than 500 eye bag cases at my practice, The Clifford Clinic and Surgery. Generally, I follow the checklist that I made below to gauge what treatment is suitable for the patient.

• Mild Grade 1–2 eye bags with firm skin→ AGNES + Secret RF non-surgical fat reduction.
• Deep tear trough or mid-cheek deficiency without significant fat protrusion→ Conservatively used filler.
• Grade 3–4 eye bags, or loose lower eyelid skin→ Eye bag removal surgery. Pinch blepharoplasty on top of eye bag removal surgery is often needed for older patients.
• Combination cases→ When a mild eye bag has a groove beneath it, I will treat the bulging fat first, then use filler later if needed.

I do not base my decision on the patient’s preference for a particular product or treatment, nor do I base it on what device or product I have in my clinic. To me, it is important that the patient’s anatomy and needs guide my decision.

Under-eye filler is not a one-size-fits-all treatment

Sometimes my patients ask me why I do not recommend under-eye filler for them when under-eye filler looks great and produced good results for their friends. Filler is an excellent treatment when it is matched to a problem it treats. If your friend had great results when using fillers, it is because your friend likely had a genuine tear trough or cheek deficiency.

Under-eye fillers are not suitable for every patient. The patients who come to me for help because they are unhappy with the results of their filler are almost never the victims of a bad product or treatment, but victims of a wrong diagnosis. Upon examination, I usually discover that these patients actually have true eye bags but where incorrectly given fillers.

If you are considering under-eye fillers, the single most valuable question you should ask your doctor is if you have a volume deficit or a fat protrusion. If the answer is vague, I recommend getting a second opinion before proceeding.

Baby fillers and prevention treatment

A recent trend I have been seeing online is younger patients in their twenties opting for getting small preventative tear trough fillers known as baby filler. If there is a genuine early trough present, conservative treatment can be reasonable. But I do not recommend injecting volume into a normal under-eye to prevent ageing as doing so is not logical. If there is no missing volume that needs replacing, a filler should not be given.

Additionally, if that patient carries a hereditary tendency for eye bags, they have now placed filler where a fat pad may later protrude, complicating both the diagnosis and the eventual treatment. Using sun protection and not rubbing your eyes is often a better preventative measure than jumping straight into getting fillers done.

What to do if you have already had filler and it made you look worse

Firstly, this is fixable problem. Below is the typical correction pathway.

1. Assessment based on what was injected, where it was injected, and how long ago it was injected.
2. Dissolving the filler with hyaluronidase if the filler is hyaluronic acid based. This is usually a quick procedure, but it sometimes needs more than one round treatment.
3. Letting the tissue settle for a few weeks so the original anatomy of your face is visible again.
4. Treating the actual problem, typically by doing a fat reduction via AGNES + Secret RF or surgery. Whether or not surgery is needed depends on grade of the eye bag and skin quality.

While I understand the temptation, please do not add more filler on top of what is already injected in an attempt to smooth things out as this will compound the problem.

Frequently asked questions

Can fillers remove eye bags? No, fillers add volume but eye bags are caused by excess fat volume. Filler cannot reduce protruding fat and often makes the area look heavier when used on true eye bags.

Why does my under-eye filler show a lump when I smile? Smiling pushes the cheek upward and compresses the under-eye tissue, this causes the filler to bunch under the pressure and create a visible ridge or lump. This is a classic sign that filler was incorrectly placed and a fat reduction is actually needed.

Is tear trough filler ever a good idea? Yes. When used for a genuine tear trough or mid-cheek deficiency without significant fat protrusion, conservative filler is an appropriate and effective treatment.

How long does under-eye filler last? Typically 9 to 18 months, but in the under-eye area it can persist considerably longer. Due to its water-attracting nature, it can occasionally cause late-onset puffiness.

Can badly placed under-eye filler be reversed? Yes. Hyaluronic acid fillers can usually be dissolved with hyaluronidase.

What should I do if I’m not sure whether I have bags or hollows? If you are unsure whether your issue is hollowing or fat bulging, you should get examined by a doctor before getting treated.

We welcome you to book an eye bag assessment at our clinic, The Clifford Clinic and Surgey, where both non-surgical eye bag removal and surgical options are available.

Dr Gerard Ee is the founder and medical director of The Clifford Clinic, Singapore. He has performed AGNES and Secret RF eye bag treatments for more than 10 years, across over 500 eye bag patients. This article reflects his clinical opinion and is for general information; it does not replace a medical consultation.

The post Why Tear Trough Fillers Can Make True Eye Bags Worse appeared first on Dr Gerard Ee.

Dr Gerard Ee is an aesthetic doctor and the founder and medical director of The Clifford Clinic, which he established 14 years ago. He has treated acne scars for 16 years, treating more than 2,000 patients with acne scars, and is one of Singapore’s longest-standing users of the Infini RF microneedling system (16 years). He holds a Diploma in Dermatology (Cardiff) and is a Member of the Royal College of Surgeons (MRCS). More on Dr Gerard Ee.

Understanding the formation of acne scars is fundamental to both their prevention and effective treatment. Patients who comprehend the underlying causes are generally better equipped to make informed decisions regarding treatment options and, critically, preventative measures. In essence, acne scars result from inflammation that extends deeply into the skin; the extent and duration of this inflammation significantly influence the likelihood of scarring. The subsequent sections elucidate the mechanisms involved.

Inflammation is the real cause

A scar begins with an inflamed pore. When oil, dead skin, and bacteria block a follicle, the immune system responds. If the inflammation is intense or reaches deep, as it does in cystic and nodular acne, it damages surrounding tissue and the collagen that gives skin its structure. As the wound heals, the body remodels collagen, and the outcome is determined at this stage: too little collagen and the surface caves into a depressed scar; too much and a raised one forms. The damage sits deep, which is precisely why no cream applied to the surface can undo it.

This distinction changes how both prevention and treatment should be understood. A scar is not a stain to be bleached away. It is a structural change. The way to have fewer of them is to give the skin less deep inflammation so it does not scar over in the first place.

Why some people scar and others do not

Two individuals may participate in the same breakout session; however, only one may emerge with lasting scars. Several factors account for this disparity:

• How deep the acne went:Surface whiteheads rarely scar. Deep cystic and nodular lesions frequently do.
• How long it was left:The longer inflammation smoulders, the more tissue is damaged, which makes delay one of the most modifiable risks of all.
• Picking and squeezing:This drives inflammation deeper and is one of the most common avoidable causes of scarring.
• Genetics:How skin heals and lays down collagen is partly inherited, which is why scarring can run in families.
• Skin tone:Deeper skin tones are more prone to the dark marks that follow a breakout, though these marks are different from true scars.

A common pattern: acne that never quite goes away

A common scenario recurs frequently. A patient experiences recurrent acne over many years and believes it is finally subsiding; however, it persistently persists, and each new outbreak results in incremental scarring. For such patients, the most crucial step is to cease focusing solely on the scars and instead address the underlying cause. The combination of AGNES and Secret RF is specifically designed for this purpose: AGNES directly targets the sebaceous glands to control acne, while the non-insulated Secret RF resurfaces the rough texture associated with chronic acne. Resolving the root cause prevents the formation of new scars.

Scars versus marks

Not everything left by acne is a scar. Flat brown or red discolouration is post-inflammatory pigmentation or redness, and it usually fades over months. A true scar is a change in texture. The two should be distinguished at the first visit, because confusing them leads to paying for the wrong treatment. This is covered in the guide to acne scars versus pigmentation.

Sun protection during active acne

Standard advice is to wear sunscreen at all times, and once the acne is controlled, this holds, as it protects against the marks and pigment that follow breakouts. The nuance concerns the period when the acne is still active. In my clinical experience, heavy sunblocks can congest the skin and trigger more breakouts, which in turn lead to more scars. During active acne, the priority is therefore controlling the acne, and where sun protection is genuinely needed, light non-comedogenic options or a hat and shade are preferable. It is a small distinction that spares many patients an avoidable flare-up.

How to lower the risk of scarring

Prevention is far easier than treatment, and most scarring is avoidable. Active acne should be treated early and properly rather than left to run its course, as bringing it under control quickly is the most powerful anti-scarring measure available. Picking and squeezing should be avoided entirely. A gentle routine helps by not adding irritation to inflammation. And where acne keeps returning despite reasonable efforts, it is worth seeking treatment before it scars. The article on why your AGNES acne treatment did not work may help where previous attempts have fallen short.

If scars have already formed

Once scars have formed, the cause is in the past, and the focus shifts to remodelling collagen at the appropriate depth: RF microneedling, subcision, lasers and biostimulators, matched to the scar type and used in combination rather than alone. The full plan is set out in the complete acne scar treatment guide. The key point for these patients is that improvement is realistic and worthwhile. It is gradual and works best once any remaining acne is controlled.

Which patients scar the most

Some people are more prone to scarring, and understanding the risk factors helps assess individual risk. Epidemiological studies identify male sex, a family history of acne, greater acne severity, truncal (chest and back) involvement, and a longer delay before effective treatment as the main risk factors (prevalence and risk factors, reducing the risk). Several of these are modifiable: genetics cannot be changed, but the duration of inflammation can, which is why early intervention is the cornerstone of prevention rather than an optional extra.

Scarring can also follow even relatively mild acne in susceptible people, because the tendency is partly driven by an individual immune and TGF-beta response rather than by the number of spots alone (atrophic scar immune study). Where acne runs in the family or the skin scars easily, that is all the more reason to seek treatment promptly.

What the research shows

This is not only a clinical impression. Histological studies show that in people prone to scarring, acne provokes a long-lasting immune response with plasma-cell infiltration and alteration of the sebaceous glands (British Journal of Dermatology study), and that the metabolism of collagen and elastic fibres is disturbed, with elevated transforming growth factor (TGF)-beta1 signalling driving the atrophic change (TGF-beta1 study). Epidemiology puts numbers on the risk: most acne patients develop some scarring and roughly half have clinically relevant scars, with acne severity, the extent and duration of inflammation, male sex and family history among the strongest risk factors (pathogenesis review, prevalence and risk factors, reducing the risk).

The practical message from this research is consistent: because the depth and duration of inflammation drive scarring, the single most effective preventive step is to bring the acne under control early, before deep inflammation has time to damage collagen.

The biology of a scar, in more detail

The biology explains why treatment works where it does. During the inflammatory phase of acne, the skin releases matrix metalloproteinases and other enzymes that degrade the extracellular matrix, particularly type I and type III collagen. When the subsequent repair lays down too little collagen, or remodels it abnormally, the result is a net loss of dermal volume. Histologically, atrophic scars show reduced, disorganised collagen, decreased dermal thickness and loss of the normal rete-ridge pattern, with fibrous bands running from the surface into the deeper dermis, the tethering that defines rolling scars.

Each subtype reflects a di-stinct pattern of this damage: rolling scars from fibrous bands tethering the dermis to the tissue beneath, boxcar scars from sharply bordered focal dermal atrophy, and ice pick scars from narrow tracts running deep through the dermis. This structural difference is why a single device cannot treat them all, a principle reflected in the 2022 international consensus on energy-based devices for acne scars (consensus recommendations).

From breakout to scar: the timeline

Scarring does not occur instantaneously; rather, it develops through a recognisable sequence. Initially, a follicle becomes obstructed by excess sebum and retained skin cells, leading to the formation of a microcomedone. If bacteria, primarily Cutibacterium acnes, proliferate and elicit an immune response, the lesion becomes inflamed, evolving from a papule or pustule to, in more severe instances, a deep nodule or cyst. The more extensive and prolonged the inflammation, the greater the destruction of surrounding collagen and supporting tissues. Subsequently, repair processes commence, and during this phase (spanning weeks or months) the outcome is determined. Proper, orderly repair restores skin to near-normalcy, while disordered repair, marked by insufficient or excessive collagen, results in a permanent scar. Therefore, the primary objective remains to minimise the duration of the inflammatory phase.

Inflammatory versus non-inflammatory acne

Not all acne carries the same scarring risk. Non-inflammatory acne, comprising open and closed comedones (blackheads and whiteheads), lies near the skin’s surface and rarely scars on its own. Inflammatory acne is the concern. Papules and pustules carry a moderate risk, while nodulocystic acne, with deep and painful lesions, carries the highest risk, as the inflammation reaches the deep dermis where structural collagen lies. Truncal acne on the chest and back also scars readily and is often undertreated. Recognising the type present helps predict risk and set the urgency of treatment.

The sebaceous gland, hormones and lifestyle

Acne is fundamentally a disorder of the sebaceous gland. Androgens stimulate these glands to produce more sebum, which is why acne commonly flares during puberty, around the menstrual cycle, and in conditions of androgen excess. Retained sebum feeds bacterial growth and drives inflammation. This central role of the oil gland is the reason treatments that act directly on it, such as AGNES radiofrequency, address a root driver rather than only the surface. Diet appears to play a smaller, supporting role, with some evidence linking high-glycaemic-load foods and, less consistently, dairy to acne severity, while stress and inadequate sleep can aggravate flares. These factors matter because anything that prolongs or intensifies inflammation raises the risk of scarring.

Why picking produces the worst scars

Manipulating a lesion is one of the most avoidable causes of scarring. Squeezing or picking ruptures the follicle wall deeper into the dermis, spreads inflammatory material into surrounding tissue, and introduces further bacteria, all of which intensify and prolong the inflammatory response. Repeated picking can also produce excoriated lesions that scar. The single most useful habit for anyone prone to acne is to leave lesions alone and treat the inflammation medically instead.

Why scarring risk is partly inherited

Two individuals with similar acne conditions can experience markedly different healing processes, a variance partly attributable to genetic factors. The propensity to develop scars is indicative of how an individual’s immune system and fibroblasts respond to inflammation, including the regulation of collagen synthesis and degradation, as well as the severity of the local immune response. Consequently, acne scarring may be familial, and some individuals are predisposed to scarring even after mild cases of acne. A documented family history or a personal history of easy scarring warrants a more proactive and earlier approach to acne treatment, as the underlying predisposition is unalterable; however, the extent of inflammation can be managed.

When to seek treatment early

Because the window to prevent scarring closes once the skin has healed, early treatment is the most effective protection. Professional assessment is worth seeking when lesions are deep, painful, or cystic; when scarring or dark marks are already appearing; when over-the-counter products have not worked after a reasonable trial; when acne is widespread or involves the chest and back; or when there is a family history of scarring. In these situations, prescription therapy, which may include topical retinoids, oral treatment or, for severe cases, isotretinoin, can shorten the inflammatory phase and prevent scars that would otherwise be permanent.

The bottom line

Acne scars are caused by deep, prolonged inflammation that damages collagen, and the people who scar most are those with deep or long-lasting acne, which is largely controllable. Treating acne early, avoiding picking, and being thoughtful about skincare all reduce the risk. Where scars have already formed, they can be improved. Continue with the types of acne scars or do acne scars fade on their own.

Frequently Asked Questions

What is stage 4 acne?

Stage 4 (severe) acne involves widespread inflamed papules, pustules and deep nodules or cysts. Because the inflammation is deep, it carries the highest risk of scarring, which is why severe acne is best treated promptly rather than waited out.

What makes acne scars worse?

Deep, prolonged inflammation, picking or squeezing, and delayed treatment all worsen scarring. During active acne, heavy occlusive sunblocks can also congest the skin and trigger more breakouts.

Does everyone with acne get scars?

No. Scarring depends on how deep and prolonged the inflammation was, genetics, and whether lesions were picked. Mild surface acne rarely scars. Deep cystic acne often does, especially if left untreated.

Can acne scars be prevented?

Largely, yes. Treating active acne early and never picking substantially reduce new scarring. Prevention is far easier than treating established scars.

Key references

• Atrophic scar formation involves long-acting immune responses with plasma cells and alteration of sebaceous glands. PubMed.
• Atrophic acne scar: altered metabolism of elastic and collagen fibres via TGF-beta1 signalling. PubMed.
• Acne Scarring, Pathogenesis, Evaluation, and Treatment Options. PubMed.
• Prevalence and risk factors of acne scars in patients with acne vulgaris. PubMed.
• Understanding and Reducing the Risk for Acne Scarring. PubMed.

Comparative trials cited

• Salameh F, Shumaker PR, Goodman GJ, et al. Energy-based devices for the treatment of acne scars: 2022 international consensus recommendations. Lasers Surg Med. 2022;54:10-26. Journal.

Dr Gerard Ee

Written, medically reviewed and with expert opinion by Dr Gerard Ee, aesthetic doctor and Founder & Medical Director of The Clifford Clinic. This article reflects my clinical experience treating acne scars in Singapore and is intended for general education, not medical advice. Treatment suitability, results, downtime and cost vary from person to person. Please arrange a consultation for advice specific to your skin.

The post What Causes Acne Scars? appeared first on Dr Gerard Ee.

Dr Gerard Ee is an aesthetic doctor and the founder and medical director of The Clifford Clinic, which he established 14 years ago. He has treated acne scars for 16 years and more than 2,000 acne-scar patients and is one of Singapore’s longest-standing users of the Infini RF microneedling system (16 years). He holds a Diploma in Dermatology (Cardiff) and is a Member of the Royal College of Surgeons (MRCS). More on Dr Gerard Ee.

Acne scars are among the most common skin concerns treated in Singapore, and among the most misunderstood. Many patients arrive after months of creams, serums and at-home devices with little to show for it. The explanation is consistent: a true acne scar is a structural change deep within the skin, and topical products cannot reach that depth. This guide explains what acne scars are, which treatments genuinely work, how they are combined, and the realistic results and costs in Singapore. The aim is to make the reasoning behind each treatment clear enough to support an informed decision. Dr Gerard Ee has treated more than two thousand patients for acne scars over sixteen years, including public figures such as actor Mark Lee, whose ongoing skin journey was featured by CNA.

What an acne scar actually is

Acne scarring begins with inflammation. When a pore becomes clogged and inflamed, particularly in cystic or nodular acne that reaches deep into the skin, the immune response damages the surrounding tissue and the collagen scaffold that gives skin its structure. As the wound heals, the body remodels collagen. When it produces too little, the skin sinks inward into a depressed, or atrophic, scar. When it produces too much, a raised hypertrophic or keloid scar forms. In both cases, the change sits well below the surface, which is precisely why topical products that act on the upper layers cannot reverse it.

This singular fact recontextualizes the issue. In cases where scars are true depressions or elevations, the pertinent inquiry shifts from selecting an appropriate cream to the means of recreating collagen at the precise depth. Given that this remodelling constitutes a biological process, it necessitates a duration, a consideration that is crucial to acknowledge, as impatience often contributes to perceptions of suboptimal treatment outcomes.

Scars or marks: the distinction that saves money

Prior to considering any treatment, the initial step is to determine the presence or absence of a scar. A significant proportion of what patients identify as scarring are, in fact, post-acne marks: flat discolorations with preserved skin texture. Brown or tan marks are classified as post-inflammatory hyperpigmentation (PIH), which is more prevalent in individuals with darker skin tones. Pink or red marks are identified as post-inflammatory erythema (PIE). The primary characteristic of both is their temporary nature. As only the pigmentation is affected, these marks typically fade over a period of weeks to months, with accelerated healing observed upon application of sun protection.

A true scar, by contrast, is a change in texture: a dip, a raised area or an uneven surface. It does not fade on its own. The simplest way to tell the two apart at home is to stretch the skin gently or shine a light across it from the side. If the colour flattens and the surface stays smooth, it is a mark. If a shadow-casting dip or bump remains, it is a scar. Settling this distinction at the outset is important, because treating fading marks with expensive resurfacing wastes money, while dismissing real scars as marks wastes months. A dedicated guide covers acne scars versus pigmentation in detail.

The types of acne scars, and why the type matters

Approximately eight or nine in ten acne scars are atrophic, meaning they sit below the surrounding skin. They take three recognisable forms, and most patients have a mixture of all three. Because the proportions determine the treatment plan, it is worth learning to recognise them.

Ice pick scars

Narrow, deep, V-shaped scars that resemble fine punctures. They extend deep into the dermis, making them the hardest to treat and generally unresponsive to broad resurfacing or microneedling. They require a targeted approach, such as TCA CROSS or Juvelook, placed directly into the scar.

Boxcar scars

Round or oval depressions with sharp, defined edges, often across the cheeks and temples. These respond well to resurfacing, to energy-based collagen remodelling, and to certain biostimulators.

Rolling scars

Broad, sloping depressions caused by fibrous bands that tether the skin to deeper tissue, producing a wavy, undulating surface. The essential point is that they are tethered: until the bands are released with subcision, resurfacing alone will not lift them. A full breakdown is set out in the types of acne scars explained.

There are also raised hypertrophic and keloid scars, which represent an excess of collagen rather than a deficit and are more common on the jawline, chest and back. They are noted here mainly to mark a limitation: the resurfacing and microneedling treatments that improve depressed scars cannot improve a keloid, which is a separate problem requiring a different approach.

Why one machine is never the answer

Since a typical facial scar comprises various types at different depths, no single device can effectively address all of them. For instance, a laser designed to smooth a boxcar scar will not impact a tether beneath a rolling scar, and a needle used to release a tether does not reconstruct the base of an ice pick scar.

This underscores the necessity of layered treatment plans and highlights the importance of caution when selecting a clinic that employs the same machine for all scar types. Aligning the mechanism of treatment—such as release for tethers, collagen stimulation for volume, resurfacing for superficial corrections, and reconstruction for deep pits—with the specific mechanism of the scar is essential in achieving successful outcomes and avoiding disappointment.

The step most people skip: treating the acne first

The initial concern in any patient with scars is to confirm whether the acne is truly under control, as numerous individuals experience persistent breakouts despite believing their acne has resolved. This issue holds greater significance than most might anticipate. Treating scars on skin prone to acne can exacerbate the condition, and each new breakout presents a risk of forming a new scar. From my clinical perspective, focusing on improving skin texture while the acne remains active is analogous to constructing on unstable ground.

This is also where device choice begins. Among the energy treatments, non-insulated microneedle radiofrequency (Secret RF) is genuinely safe for acne-prone skin because its needles pass through and calm the oil glands while improving texture. Where acne control is poor, it can be combined with AGNES RF, which targets the oil glands directly. A common pattern is recurrent acne of several years’ standing that is assumed to be settling but never quite does and addressing that root cause is decisive. The combination of AGNES and Secret RF is designed for exactly this situation: it brings the acne under control while resurfacing the rough texture that accompanies it. Only once the acne is settled does attention turn to remodelling the deeper scars. For patients whose acne treatment has repeatedly fallen short, it may be useful to know why your AGNES acne treatment did not work.

RF microneedling: Infini and Secret RF

Radiofrequency (RF) microneedling is one of the core tools for depressed scars. Fine needles deliver RF energy directly into the dermis, heating it in a controlled way to trigger new collagen, which then remodels over the following months to lift scars from below. Because the heat is delivered through needles rather than across the surface, RF microneedling is generally safer in pigmented and Asian skin than older fully ablative lasers, a meaningful advantage in Singapore.

The two systems used most in scar work are not interchangeable. Infini uses insulated needles, which concentrate energy at the needle tip deep in the dermis while sparing the surface. This allows high energy to be placed exactly where a deep scar needs it, with a strong safety margin, and is the reason it is generally preferred in darker skin. Secret RF uses non-insulated needles that deliver energy along the whole shaft. This is gentler on the deep dermis but carries the advantage of passing through and calming the oil gland, which suits acne-prone skin. For depressed scars, the maximum power a device can deliver matters, and the regulatory figures are clear: Infini reaches up to around 50 W (FDA 510(k) K121481) and Secret RF is cleared to 25 W (FDA 510(k) K170325). A full comparison is set out in Infini vs Secret RF.

Subcision: releasing what pulls scars down

For rolling scars, subcision is often the single most effective step, and it is one that resurfacing-only plans miss entirely. Using a fine needle or a blunt cannula, the practitioner passes beneath the tethered scar and divides the fibrous bands anchoring it down. Once released, the skin lifts and the controlled injury stimulates fresh collagen to fill the space. Subcision is rarely used in isolation, since it pairs naturally with RF and with biostimulators. In this practice, hyaluronic acid fillers are generally avoided for scars in favour of biostimulators that build the skin’s own collagen. There is more detail in the guide to subcision and biostimulators for rolling scars and the subcision for acne scars page.

Lasers: fractional CO2 and Pico MLA

Fractional CO2 laser is often described as the gold standard for resurfacing, and for boxcar scars and general surface texture it earns that reputation. It creates microscopic columns of controlled injury that prompt the skin to rebuild with fresh collagen. It is powerful but it is a course of treatment, not a one-off cure, and in darker skin it is used cautiously and at lower energy to avoid pigmentation. A dedicated article covers CO2 laser for acne scars.

Pico MLA is a complementary laser: a picosecond device fitted with a microlens array that concentrates the beam into many tiny high-energy points just beneath the surface. It is effective for refining enlarged pores, smoothing fine surface irregularity and evening out pigment, with minimal downtime. Its limits matter equally: because it works at and just below the surface, it is not effective for tethered rolling scars or deep ice pick scars. It is best used as a surface-and-pigment complement within a plan, rather than a treatment for depressed scars in its own right.

TCA CROSS and reconstruction for ice pick scars

Deep ice pick scars follow a different logic. Rather than resurfacing around them, TCA CROSS applies a high-strength acid precisely into the scar to stimulate collagen and rebuild the narrow pit from its base. Juvelook placed into the scar does the same and is, in Dr Gerard Ee’s clinical experience, a safer and more effective alternative to TCA CROSS for boxcar and ice pick scars. These targeted techniques are what improve ice pick scars that lasers and microneedling leave largely untouched, and they illustrate why scar type has to drive treatment choice.

Biostimulators and PDRN: rebuilding and repairing

Where volume and collagen support are needed, biostimulators are best chosen by scar type rather than using one product for everything. Ellanse suits significant volume loss, Juvelook suits ice pick and boxcar scars, Sculptra or Lenisna suit scars that are mostly rolling with loose skin, and RE20 suits very mild scarring. PDRN (Rejuran) is a useful addition across the board: it improves healing, reduces downtime, and potentiates results, and it can be performed alongside microneedle RF. One practical detail is worth noting: Sculptra is best placed with a cannula, and passing that cannula beneath a scar produces a subcision effect at the same time as stimulating collagen, so the delivery does double duty.

Putting it together: how a six-month plan looks

In practice, modalities are rotated over roughly six months rather than one being repeated. A representative plan might combine subcision for tethered scars, a rotation of Infini and Secret RF, a couple of fractional CO2 sessions, Pico MLA for pores and pigment, and PDRN to support healing, with a biostimulator added where the scar type calls for it. A typical sequence begins with subcision and Secret RF together, then fractional CO2 about a month later once the skin has settled. Sessions are spaced four to six weeks apart, because that interval lets each session’s collagen mature before the next stimulus. Crowding treatments together simply under-doses each one. The principle behind layering is set out in combination therapy for atrophic scars.

Acne scars and darker skin

For Fitzpatrick IV to VI skin, the overriding priority is avoiding post-inflammatory hyperpigmentation while still delivering enough energy to remodel collagen. Deeper skin has more active pigment cells that respond to heat and inflammation, so an approach that is unremarkable in lighter skin can leave lasting marks. The usual backbone in these patients is insulated Infini, because the insulation protects the surface. Fractional CO2 is used at lower energy, PDRN supports healing, and sun protection is rigorous. Importantly, a tendency to keloids is not by itself a barrier to treating atrophic scars. The full version is in acne scars on dark skin.

What results are realistic

Realistic expectations are part of achieving a good result. True scars can be significantly improved but are rarely erased completely. A rotation of modalities without injectables typically delivers around twenty to thirty per cent improvement over six months, with more when biostimulators and PDRN are added. Most visible change appears over three to six months as new collagen matures. There is no single best-responder patient. Consistent results come from accurate diagnosis, treating the root cause, supporting the skin with good skincare, and giving the process time. In my experience, the acne scar journey is slow but genuinely rewarding, and with patience the skin can become markedly smoother over time.

What acne scar treatment costs in Singapore

Cost depends on the treatments and the number of sessions, so any figure is a guide rather than a quote. Individual treatments can be accessible; a single fractional CO2 session can start at S$390, while a six-month custom scar package combining Infini, Secret RF, fractional CO2 and Pico MLA is around S$4,000. Two common mistakes are worth avoiding: chasing the lowest price and assuming that repeating the most expensive machine many times gives the best result. Neither is true. Spending more is not the most cost-effective route to better skin. The right combination, properly spaced, is. A detailed breakdown of the cost of acne scar treatment in Singapore is available.

The most common mistakes

Two patterns account for most disappointed patients seeking a second opinion. The first is an underpowered or weak microneedle RF machine used on deep scars, producing little or no result. The second is repeated monthly treatment that delivers very little while costing a great deal over many sessions. Both stem from the same root issues: too little energy delivered and too little time for the body to build collagen between sessions. A third pattern is treating scars while the acne is still active, which simply produces new scars. None of these outcomes reflects anything unreasonable on the patient’s part, but all three are avoidable with the right plan. The candid six things your doctor isn’t telling you expands on this.

Choosing where to be treated

When evaluating a clinic, look for a doctor who assesses the specific scar types in person and owns a range of technologies rather than one machine used for everything. It is reasonable to ask what the maximum power of the RF device is and how far apart sessions are spaced. A confident, specific answer is a good sign. Be wary of pressure to buy large packages up front, a push toward weekly or monthly visits, or promises of total scar removal. Honesty about limitations (that RF cannot fix keloids or temple scars, and that results are gradual) is a reliable marker of a trustworthy clinic.

A treatment philosophy, in short

The approach that consistently works is to treat the root cause first and then rebuild texture gradually, choosing each tool for the job it does best, rather than chasing a fast result by stacking machines or buying the most expensive package. Spending more is not the same as achieving better results. Combined with skincare that calms the oil gland and supports collagen, this steady, staged approach ages and looks better than aggressive over-treatment.

How many sessions are needed, and how often

There is no fixed number, as outcomes depend on the depth and mix of scars, skin tone, and how the skin responds. Acne scar treatment is almost always a course rather than a single visit. As a rough guide, many patients follow a six-month programme of treatments spaced four to six weeks apart, after which the plan is reviewed and further sessions or maintenance considered. Treating more frequently is counterproductive: sessions that are too close together do not give the body time to build collagen, and trying to do too much in one sitting under-doses each individual treatment. Fewer, properly-dosed treatments at sensible intervals consistently outperform a crowded, intensive schedule.

Tracking progress the right way also helps. Improvement from collagen remodelling is gradual and easy to miss day to day, so results are best assessed over three to six months with consistent, well-lit photographs rather than in the bathroom mirror. Patients who understand this rhythm tend to stay the course and achieve the best outcomes.

Aftercare: protecting the result

Effective results are achieved through a collaborative effort between clinical treatment and at-home care. Sun protection plays a significant role, as ultraviolet light can darken scars, particularly after acne has been controlled, and it is especially pertinent in resurfacing treatments and for individuals with pigment-prone or darker skin. A notable deviation from conventional guidelines is observed: during active acne, the use of heavy sunscreens may, based on clinical experience, congest the skin and provoke additional breakouts, ultimately leading to more scars. Therefore, during the active phase of acne, it is advisable to focus on controlling the condition and, where sun protection is truly necessary, to opt for light, non-comedogenic alternatives or protective clothing such as hats and shaded areas. Once the acne is under control, the importance of sun protection increases substantially and is highly recommended. Additionally, implementing a gentle, non-irritating skincare routine that supports the skin barrier and manages oil and inflammation can facilitate both healing and the underlying acne issues. While not complicated, these measures are crucial in safeguarding the significant investment of time and resources involved in treatment.

What the research shows

Acne scarring is common: studies report that most acne patients develop some scarring and around half have clinically relevant scars, with severity, duration of inflammation and family history among the main risk factors (pathogenesis review, prevalence and risk factors). The main treatments are well supported. Ablative fractional CO2 laser is a gold-standard resurfacing option with meta-analytic support for improving atrophic scars (CO2 meta-analysis, monotherapy series), and fractional radiofrequency microneedling has a growing evidence base as an effective, well-tolerated treatment (systematic review).

The literature also supports combination treatment. Pairing PDRN such as Rejuran with fractional CO2 laser supports healing and shortens recovery, since PDRN promotes fibroblast activity and collagen synthesis (PDRN scar prevention). Subcision paired with TCA CROSS is a recognised, cost-effective approach for atrophic scars (subcision plus CROSS), and collagen-stimulating poly-lactic acid delivered with fractional CO2 has shown high rates of scar improvement (PLLA plus CO2). None of this replaces an individual assessment, but it is the evidence base on which a sound plan is built.

The bottom line

Acne scars are highly treatable, but the approach matters. Settle the acne first, identify the scar types accurately, match each to the right tool, combine them in sequence, space sessions sensibly, and allow collagen the months it needs. Approached this way, smoother, more even skin is a realistic goal for almost everyone. For more detail on any one element, start with what causes acne scars, the types of acne scars, or RF microneedling: Infini vs Secret RF.

Frequently Asked Questions

Which acne scar treatment is most effective?

No single treatment suits everyone. The strongest results come from combining modalities, RF microneedling (Infini or Secret RF), subcision, fractional CO2, Pico MLA and biostimulators, matched to the specific scar types, rather than repeating one device.

How much does acne scar treatment cost in Singapore?

Individual sessions can be accessible; a single fractional CO2 session can start from as low as S$390, while a six-month custom scar package combining Infini, Secret RF, fractional CO2 and Pico MLA is around S$4,000.

Can acne scars be completely removed?

Rarely to perfection. True scars can be significantly improved, often around twenty to thirty per cent over six months with energy-based treatment, more with biostimulators, but realistic, gradual improvement is the honest goal.

How long does acne scar treatment take to work?

Collagen remodelling is slow. Most patients need several sessions spaced four to six weeks apart, with much of the visible improvement appearing over three to six months.

Do I need to treat my acne before my scars?

Yes. Treating scars while acne is active can flare the acne and create new scars. The acne is stabilised first, often with non-insulated Secret RF and sometimes AGNES RF, before focusing on scar remodelling.

Is acne scar treatment safe for dark skin?

Yes, with the right choices. Insulated Infini is generally safest because it spares the surface, fractional CO2 is used at lower energy, and sun protection is essential. A keloid tendency does not by itself rule out treating atrophic scars.

Key references

• Acne Scarring, Pathogenesis, Evaluation, and Treatment Options. PubMed.
• CO2 versus Er:YAG fractional laser for atrophic acne scars: meta-analysis and systematic review. PubMed.
• Fractional radiofrequency microneedling as monotherapy in acne scars: systematic review (16 studies, 481 patients). PubMed.
• PDRN (polydeoxyribonucleotide) for scar prevention and enhanced wound healing. PubMed.
• Subcision plus 50% TCA CROSS for atrophic acne scars: a cost-effective therapy. PubMed.
• Atrophic scars treated with fractional CO2 laser facilitating topical poly-L-lactic acid. PubMed.

Device specifications & sources

• S. FDA 510(k) Summary K213612 (SYLFIRM X, ViOL Co., Ltd.): Output power Max 16 W at 50 Ω. 2 MHz. Bi-polar RF.
• S. FDA 510(k) Summary K170325 (Secret RF, Ilooda Co., Ltd.): Max power Max 25 W at 500 Ω. 2 MHz. Needle depth 0.5-3.5 mm.
• S. FDA 510(k) K121481 (INFINI, Lutronic Inc.): insulated RF microneedling system, 49-pin handpiece, maximum RF generator output approximately 50 W.

Written, medically reviewed and expert opinion by Dr Gerard Ee, aesthetic doctor and Founder & Medical Director of The Clifford Clinic. This article reflects my clinical experience treating acne scars in Singapore and is intended for general education, not medical advice. Treatment suitability, results, downtime and cost vary from person to person. Please arrange a consultation for advice specific to your skin.

The post Acne Scar Treatment in Singapore: A Complete Guide appeared first on Dr Gerard Ee.

For patients whose knee pain has not settled despite physiotherapy and load management, knee injections are usually the sensible next step. The question is thus not if the patient should get a knee injection, but which one they should get. In Singapore, options include steroid, platelet-rich plasma (PRP), hyaluronic acid (HA), Conjuran, and Guna Collagen MD.

The options listed above are not interchangeable, work different ways, and are suitable for use in different situations depending on the condition of the knee being treating. Due to their unique qualities, I do not consider any one to be better than the rest. Each type of injection can be used at different points in a sensible treatment plan.

In this article, I will go through the clinical reasoning behind why and when I choose to use each type of injection.

There Is No Universal Best Knee Injection

The five most commonly used knee injections perform different jobs.

• Steroid (cortisone)is a strong local anti-inflammatory. It excels at rapidly calming acute knee flares.
• Platelet-rich plasma (PRP)is a biological treatment that uses growth factors from the patient’s own blood to improve the knee joint environment.
• Hyaluronic acid (HA)is a viscosupplement. It restores the lubricating and shock-absorbing qualities of the joint fluid.
• Conjuranis a polynucleotide injection. In clinical practice it is used as a viscosupplement alternative to HA, but it is not a PRP equivalent.
• Guna Collagen MDis a Class III type-I collagen medical device that is used as an extracellular-matrix bioscaffold. As it has a smaller clinical evidence base compared to the other four options, I only offer it with informed consent.

No treatment is automatically the best. The treatment should be matched to the patient’s needs and situation. The best option for any particular patient thus depends on the condition of the patient’s knee, their pain pattern, the stage of knee osteoarthritis (OA), and the patient’s treatment goals.

A Closer Look at Each Option

Steroid (cortisone). Steroid injections are strongly anti-inflammatory with a fast onset but have a short-term effect that lasts typically weeks to a few months. They are best suited for treating acute, inflamed flare ups. However, repeated steroid injections into the same knee are discouraged for cartilage-health reasons and diminishing returns, making them not suitable for use as a maintenance strategy.

Hyaluronic acid. Synolis VA is an example of a HA injection, it is a 2% non-crosslinked sodium hyaluronate of 2 MDa, biofermentative origin, combined with 4% sorbitol as an antioxidant. Synolis VA can be delivered as a single 4 ml injection or as a short course of three 2 ml injections. HA injections are suitable when viscosupplement is preferred and are effective when used to treat dry and creaky osteoarthritic knees.

Platelet-rich plasma. RegenLab RegenPRP is used in many Singapore practices. PRP is made using concentrated platelets from the patient’s own blood via a leukocyte-poor preparation in a CE-certified closed-circuit kit. PRP is suitable for treating mild to moderate knee OA and is particularly effective for treating knees with a more reactive or inflammatory pattern. In my experience, PRP injections work best in patients who are prepared to pair the injection with structured rehabilitation.

Conjuran (polynucleotide alternative to HA). Conjuran is composed of PDRN-class sodium polynucleotide purified DNA fragments. It is used as a viscosupplement-style option, but it is not a PRP equivalent. Conjuran is suitable for patients who want a non-steroid or non-HA viscosupplement strategy.

Guna Collagen MD. A class III injectable type-I collagen that is used as an extracellular-matrix bioscaffold. As mentioned, it has a smaller evidence base than HA or PRP, thus it should only be given with informed consent and should be used after other options have been tried.

My opinion

“Generally, my usual treatment decision flow would be to use a steroid injection for a flared knee, PRP for mild to moderate knee OA where longer-duration symptom improvement is the goal, and HA or Conjuran when a viscosupplement strategy is preferred. I would only use Guna Collagen MD after HA, PRP or viscosupplementation  have been tried.”

 

When and Why to Combine Treatments

Combining different treatments is not always necessary or appropriate. But below are some common scenarios that I have encountered where combining different treatments is beneficial for the patient.

Steroid plus HA for an OA flare with synovitis and effusion. This combination is effective for when the patient wants fast relief and longer symptom control. The steroid handles the inflammation and HA provides longer term comfort and symptom control.

PRP plus HA via CellularMatrix for mild to moderate OA without an active flare where longer-duration relief is the goal. PRP delivers the biological signal that reduces joint pain and inflammation, and HA provides the viscosupplementation.

Polynucleotide-class plus HA for patients who prefer a non-steroid treatment path and want a viscosupplement strategy. This combination is effective for patients with early to moderate knee OA where the viscosupplement effect is extended or amplified.

Steroid first, followed by PRP. This combination is effective when PRP is the preferred treatment but the knee is too inflamed for a PRP injection. The joint is settled first with steroid, then revisit with PRP a few weeks later once the synovitis has calmed down.

Guna Collagen MD plus HA. This serves as a salvage strategy when HA, PRP and PDRN injections have all been tried but do not provide enough relief.

My opinion

“PRP would be wasted if given during an active inflammation. If the knee is hot and swollen, I will settle it with a steroid injection first then and revisit with PRP a few weeks later. The sequence of the injections matters as much as the treatment agent. Giving the patient the right injection at the right time is a bigger factor in determining the treatment outcome than the treatment brand or product used.”

Comparative Clinical Decision Flow

Below is a brief summary of the specific set of conditions I look out for to quickly determine what type of injection to use.

• A flared, swollen, and hot knee → Steroid is chosen because of its speed of action.
• Mild to moderate knee OA with no flare and longer treatment effect is wanted → PRP is chosen because of its effect durability.
• Stiff, dry, or creaky knee, and the patient prefers a non-steroid and non-PRP approach → HA or Conjuran as both are non-steroid and non-PRP injections.
• A single shot treatment wanted → HA is chosen as it can be administered as a single 4 ml injection. PRP is usually requires a short course.
• HA / PRP / PDRN have been tired but did not deliver enough results → Guna Collagen MD plus HA as a last resort.

Knee Injections Compared at a Glance

Mistakes And Misconceptions That I See In My Practice

Most of the patients I see for knee injections are in the 40 to 60 year old age bracket, with mild to moderate knee OA. I see both male and female patients. Some are completely new to getting knee injections, while others have had them before with mixed results and want a more carefully structured treatment plan.

The most common mistakes that I see patients make are picking treatments based on what is trendy rather than based on their diagnosis, treating the injection as the full treatment as opposed to a part of a treatment plan, and skipping rehabilitation.

Some of the more common misconceptions that patients have include expecting a steroid injection to last for years, and expecting PRP to work instantly. Patients also tend to confuse Conjuran with PRP.

When Injection Is Not the Right Move

A knee injection the wrong move in the situations listed below.

• The diagnosis is not confidently established. Reassessment and re-imaging should be done first.
• The imaging shows end-stage knee OA with major function loss. Surgical referral is the best course of action in this case.
• The patient is suffering from active local or systemic infection, has recent skin infection over the knee, or has certain blood disorders or uncontrolled anticoagulation.

Managing Non-Responders

Using PRP as an example, if the patient does not see results at twelve weeks, the next step should not be immediately getting another injection. The first course action should be to re-confirm the diagnosis, review the X-ray, and order an MRI if the diagnosis is still unclear. An MRI should also be ordered to look for a focal cartilage defect if it is suspected that a cartilage defect is driving the pain rather than knee OA.

Secondly, review the patient’s rehabilitation plan and activity load. In my experience, most non-responders are patients who skip rehabilitation.

Thirdly, consider a combination of treatments or a different treatment agent. For example, CellularMatrix, which is PRP plus HA, can be considered. A shift to HA, Conjuran or Guna Collagen MD can also be considered.

Finally, counselling regarding the patient’s treatment ceiling should be given. Some knees will not respond to injections due to the severity of their OA. Surgical referral should always be considered when appropriate.

Costs and Insurance

At my practice, The Clifford Clinic and Surgery, a single-agent knee injection of PRP, HA or Conjuran is priced from SGD 1,500. The prices of combination treatments are quoted separately. As The Clifford Clinic and Surgery is a MOH-approved day surgery centre, knee injections performed here are claimable through Medisave and hospitalisation insurance, significantly reducing the out-of-pocket cost.

My opinion

“The cheapest treatment may not always really be the most cost-effective treatment once Medisave and insurance are accounted for. When comparing cost, patients should consider the price, if the treatment is covered by their Medisave or insurance, and what additional out-of-pocket costs are not included in the price. Patients should also consider the treatment agent, how many treatment sessions are needed, and whether imaging guidance is used before committing to a treatment.”

 

Summary

There is no universal best knee injection as the right injection for each patient depends on whether their knee is experiencing a flare up, their OA grade, their prior treatment response, their treatment goals and their preferences.

In general, my treatment selection hierarchy is steroid for flare ups, PRP for mild to moderate OA, HA or Conjuran for viscosupplement based strategy, and Guna Collagen MD as a salvage option with informed consent. Combination treatments are not always needed and should be used only when the situation justifies them. Surgery is reserved for end-stage disease where non-surgical care is not longer viable.

The most important thing that I would like to stress is that all treatments should be paired with proper rehabilitation.

Frequently Asked Questions

Which knee injection works fastest? Steroid injections typically work fastest. Their effect is seen within a few days, but their effect is short-term. PRP, hyaluronic acid and Conjuran work more gradually with benefit building over weeks.

Which knee injection lasts longest? PRP, hyaluronic acid and Conjuran have longer effect durations. For mild to moderate knee OA, PRP usually outperforms hyaluronic acid in pain and function at six to twelve months.

Is Conjuran the same as PRP? No. In clinical practice Conjuran is treated as a polynucleotide viscosupplement alternative to HA, but it is not a PRP equivalent. PRP uses concentrated platelets from the patient’s own blood. Conjuran uses sodium polynucleotide.

Can knee injections be combined? Yes. Steroid plus HA for an OA flare up, polynucleotide plus HA when a non-steroid viscosupplement strategy is preferred, and PRP plus HA via CellularMatrix for non-flared mild-moderate OA are examples of combinations treatments.

Are knee injections claimable through Medisave or insurance in Singapore? Knee joint injections performed in an MOH-approved day surgery centre are claimable through Medisave and hospitalisation insurance. Coverage depends on your specific plan.

Is rehabilitation needed after a knee injection? Yes. Injections work best when paired with structured strengthening, weight management and load adjustment. Without proper rehabilitation, even the best injection for the patient tends to give a short-lived result.

Related Reading

• Knee Pain in Singapore: Causes, Symptoms and Treatment Options
• Knee Pain When Climbing Stairs
• Front, Inner, Outer or Back of Knee Pain
• Knee Osteoarthritis in Singapore

Clinic and treatment pages.

• PRP knee injections for knee pain — Dr Gerard Ee
• Hyaluronic acid knee injections at The Clifford Clinic

Speak to Dr Gerard Ee About Your Knee Pain

A proper assessment is needed to match the right injection to your knee. Knee joint injections at Dr Gerard Ee’s practice are performed in an MOH approved day surgery centre and are claimable through Medisave and hospitalisation insurance. The clinic’s team will advise on eligibility during consultation.

The Clifford Clinic and Surgery, 50 Raffles Place, #01-01 Singapore Land Tower, Singapore 048623 (Exit B, Raffles Place MRT) Phone: (65) 6532 2048 | WhatsApp: (65) 8318 6332

About Dr Gerard Ee

Dr Gerard Ee

Dr Gerard Ee (MBBS UK, MRCS Edinburgh, DP Dermatology Cardiff) is a Member of the Royal College of Surgeons and a senior physician in Singapore. He is trained as an orthopaedic doctor and has years of experience in both operative and non-operative care of knee osteoarthritis. His peer-reviewed orthopaedic research has been published in top-tier journals including The Knee, Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA), the Journal of Bone and Joint Surgery (British) and Clinical Orthopaedics and Related Research. He now works as a senior aesthetic doctor and continues to provide evidence-driven, non-surgical knee care for mild to moderate knee osteoarthritis with a clinical philosophy of using non-invasive treatments first and surgery as a last resort. He believes that treatment should be matched to evidence and to the individual patient.

The post Knee Injection Options in Singapore: How to Choose Between Steroid, PRP, HA, Conjuran and Collagen MD appeared first on Dr Gerard Ee.

Acne scar treatment is not about selecting a single best laser, and the most common question posed to clinicians, which laser is best, is the wrong place to begin. Acne scarring is not one problem but several distinct types, and each responds to a different treatment approach. Mapping the scars first is what transforms a vague plan into a precise one, and skipping this step is the most common reason scar treatment falls short of expectations.

My quick answer

Acne scars present in distinct types, mainly ice pick, boxcar, and rolling, which often appear together on the same individual. Each type requires a different treatment approach: TCA CROSS for ice pick scars, subcision for rolling scars, fractional CO2 or radiofrequency microneedling for boxcar scars, and Pico MLA for enlarged pores. No single laser addresses all scar types, so mapping the scars, accounting for skin tone and the presence of any active acne, must take precedence.

What I look for during the consultation

Mapping is a clinical skill rather than a technological tool. The skin is assessed under indirect, angled lighting, as raking light reveals the depth and shape of each scar far more effectively than flat lighting. From there, the process involves distinguishing ice pick scars from boxcar and rolling types, identifying which scars are tethered, and noting areas of volume loss rather than simple surface depressions. The location on the face matters, as does skin tone and the presence of any active acne.How I classify acne scars

Ice pick scars are narrow and deep, resembling small punctures. Boxcar scars are broader, with defined edges and a flat base, and may be shallow or deep. Rolling scars appear soft and wavy, caused by the skin being tethered to the underlying tissue, which creates shadows across the surface. Most individuals present with a mixture of these types, along with flat red and brown marks, which is precisely why a single treatment rarely suits everyone.

Dr Gerard Ee’s clinical note

The scar mapping checklist is straightforward, yet it determines the entire course of treatment. The assessment considers scar type, tethering, volume loss, facial location, skin tone and the risk of post inflammatory hyperpigmentation, as well as the presence of any active acne. Only after evaluating all these factors does the clinician select among TCA CROSS, subcision, CO2, radiofrequency microneedling, and other modalities. The mapping itself constitutes the treatment plan.

When I would consider each treatment

Once the scars have been mapped, each type is matched with the most suitable treatment. TCA CROSS is reserved for narrow ice pick scars. Subcision releases the tethering responsible for rolling scars. Fractional CO2 laser and radiofrequency microneedling remodel boxcar scars and broader textural unevenness, with CO2 often used to supplement devices such as Infini and Secret RF. Pico MLA is employed for enlarged pores. In cases where active acne coexists with scarring, Secret RF is particularly valuable as it also helps control the acne.When I would not treat, or would adjust the plan

Two factors can override the textbook approach. In darker, PIH prone skin, greater caution is exercised with aggressive resurfacing modalities such as fractional CO2 and Secret RF, using lower energy settings and longer treatment intervals. Scarring is not treated while the skin is still actively breaking out, with the single exception of Secret RF. One important clinical caveat is that certain scars, such as those on the temples, respond poorly to laser alone and require a combination approach, which is worth recognising in advance.Common mistakes I see

The biggest mistake is using a single device for every scar, often whatever a clinic happens to own, which inevitably suits some scars while missing others. The second error is the belief that older scars are more difficult to treat, which clinical experience does not support. The third is commencing aggressive scar treatment while the skin is still breaking out, which is counterproductive. Mapping the scars first avoids all three pitfalls.

Mixed scarring is the norm

Very few individuals present with just one type of acne scar. Most have a mixture: perhaps some narrow ice pick scars on the cheeks, a few boxcar scars with defined edges, broader rolling scars that appear as shadows, and flat marks layered over them. This is precisely why mapping is so essential, as a single treatment applied to the entire face will suit some scars while missing others. Identifying the specific combination is what allows a plan to address each component appropriately.

Why combination treatment outperforms a single laser

Because scarring is usually mixed, the most effective treatment plans combine modalities rather than relying on a single device. A combination approach might pair a treatment for narrow scars with one for tethered scars and another for broader textural issues, sequenced over several sessions. This is not about performing more procedures for their own sake, but about matching each tool to the scar type it suits best, so that the overall result is substantially better than any single laser could achieve alone.

What you can realistically expect

A mapped plan typically combines treatments, with improvement building progressively across a series of sessions rather than appearing all at once. Scar improvement takes time and cannot be accelerated, as the skin is undergoing active remodelling. The estimated number of sessions and the realistic degree of improvement are outlined at the initial consultation, so that progress can be measured against a clear treatment framework.

When to see a doctor

It is advisable to have acne scars assessed if they are a source of concern, if they clearly comprise a mixture of types, or if previous treatment with a single laser did not yield satisfactory results. Mapping is difficult to perform accurately without an in person assessment under proper lighting, and a consultation also serves to confirm whether active acne still requires control prior to initiating scar treatment.

Why some scars need combination treatment

Mapping often reveals that no single treatment will address every concern, and certain scar types make this especially clear. Scars in particular areas, such as the temples, respond poorly to laser alone and require a combination approach. Mixed scarring across the face almost always calls for more than one modality. Recognising these patterns in advance prevents wasted sessions and disappointment, and it is one of the main reasons a careful map is worth the time before any treatment begins.Setting realistic goals for scar treatment

Scar treatment aims for significant, lasting improvement rather than perfectly smooth skin, and being transparent about this from the outset is important. Improvement builds gradually over a series of sessions as the skin remodels, and the process cannot be accelerated. Old scars respond just as well as new ones, so age is rarely a barrier, but patience remains essential. A clear plan, with a realistic number of sessions and an achievable goal, is what makes the process satisfying rather than frustrating.

What the evidence shows

Matching the treatment to the scar type is supported by a substantial body of clinical research. Acne scarring is common in individuals who have experienced significant acne, and the risk increases with more severe inflammation, which is why early acne control is important. The main treatments each have trial support for particular scar types. Fractional carbon dioxide laser is effective for depressed scars and compares well against gentler ablative lasers. Radiofrequency microneedling improves depressed scars in controlled studies. Subcision releases the tethering responsible for rolling scars. Focused acid treatment targets narrow ice pick scars. Because most individuals have a mixture of scar types, combining treatments according to the scar map consistently outperforms any single device.

How acne scars form, and why timing matters

Understanding how scars form explains why they are treated the way they are. When acne inflammation is deep or prolonged, it disrupts the collagen in the deeper layers of the skin. In most individuals, this results in a depressed, or atrophic, scar as collagen is lost, which gives rise to the ice pick, boxcar, and rolling scars most commonly observed. In some individuals, particularly on the chest, shoulders, and jawline, the skin overproduces collagen and forms a raised, or hypertrophic, scar or a keloid instead. Because the damage is established during active inflammation, the most powerful scar prevention step is to control acne early, before repeated deep breakouts can cause lasting harm.

Timing also shapes the treatment of established scars. Flat red and brown marks are addressed first or concurrently, as they represent colour changes rather than textural irregularities. True scars are treated on stable skin once active acne has settled, and the plan is staged over several sessions, since collagen remodelling is a gradual process that cannot be accelerated. Skin tone is factored in throughout, as darker skin types require gentler settings and longer intervals to avoid triggering pigmentation.

Get your acne scars mapped before any laser is chosen.

The Clifford Clinic is located at 50 Raffles Place, Singapore Land Tower. To arrange a consultation, please call (65) 6532 2400 or WhatsApp (65) 8318 6332.

Frequently asked questions

Why do acne scars need to be mapped first?

Acne scarring is not a single problem. Ice pick, boxcar, and rolling scars each respond to different treatments, so mapping the scar types, accounting for skin tone and the presence of active acne, determines the most appropriate plan. No single laser can address all scar types.

What treatments are used for acne scars?

TCA CROSS is used for ice pick scars, subcision for rolling scars, fractional CO2 and radiofrequency microneedling for boxcar scars and broader textural concerns, Pico MLA for enlarged pores, and Secret RF for cases where active acne is still present.

Are old acne scars harder to treat?

In clinical experience, long standing scars respond just as well as recent ones, so it is rarely too late to treat them.

Can acne scars be removed completely?

Scar treatment aims for significant improvement rather than complete erasure, with results built gradually over a series of sessions. Realistic expectations are discussed at the initial consultation.

Related reading

• Acne Treatment Singapore: How I Choose (Dr Gerard Ee)
• Acne Scar Removal (Dr Gerard Ee)
• TCA CROSS for Acne Scars (Dr Gerard Ee)
• Subcision for Acne Scars (Dr Gerard Ee)
• Secret RF for Acne Scars (Dr Gerard Ee)
• Edge Fractional CO2 Laser (Dr Gerard Ee)

References

• HealthHub Singapore. Acne. https://www.healthhub.sg/a-z/diseases-and-conditions/acne
• American Academy of Dermatology. Guidelines of care for the management of acne vulgaris. https://www.aad.org/member/clinical-quality/guidelines/acne
• Acne vulgaris. https://dermnetnz.org/topics/acne
• Prevalence and risk factors of acne scars in patients with acne vulgaris. PubMed. https://pubmed.ncbi.nlm.nih.gov/37357642/
• Fractional carbon dioxide versus erbium laser for atrophic acne scars: systematic review and meta-analysis. J Cosmet Dermatol. https://pubmed.ncbi.nlm.nih.gov/38733085/
• Fractional microneedle radiofrequency, with and without subcision, for atrophic acne scars: randomised split-face study. PubMed. https://pubmed.ncbi.nlm.nih.gov/28432727/
• Subcision in acne scarring: a review of clinical trials. J Cosmet Dermatol. https://onlinelibrary.wiley.com/doi/10.1111/jocd.15480
• CROSS technique with trichloroacetic acid for ice pick acne scars. PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2956965/
• Dr Gerard Ee. Acne Scar Removal, Singapore. https://drgerardee.com/acne-scar-removal/

Medical disclaimer: This article is for general education and does not replace an in-person consultation. Treatment suitability, results and risks vary between individuals. Please speak with a qualified doctor before starting any acne treatment.

The post Acne Scar Mapping: Why Diagnosis Comes Before Laser Choice appeared first on Dr Gerard Ee.

(MBBS, MRCS, Diploma in Practical Dermatology, Cardiff). I am the Founder and Medical Director of The Clifford Clinic. I have spent more than 14 years treating acne, and I was among the first doctors in Singapore to use AGNES and AviClear. The opinions in this article are my own clinical views, shared to help you make sense of your options. This article is for general education and does not replace a personal consultation. Last reviewed: June 2026.

Clearing acne is only half the story for many of my Asian patients, as the brown marks left behind often linger far longer than the pimples themselves. These flat brown patches are one of the most common concerns I see, and they are not scars. They can be treated, but in darker skin they need a careful, pigment aware approach rather than aggressive treatment.

My quick answer

Brown acne marks are post inflammatory hyperpigmentation, or PIH, where extra pigment is deposited after a breakout. They are flat, not scars, and they are more common in Asian and darker skin. Treatment combines a pigment laser such as Q-Switch with diligent sun protection and pigment friendly skincare. In pigment prone skin the approach is gentler, using lower energy and longer intervals and avoiding the more aggressive devices that can worsen pigmentation.

What I look for during the consultation

The assessment confirms that the marks are flat brown pigment rather than a scar or another form of pigmentation such as melasma, since each is treated differently. How long the marks have lasted, the skin tone, sun exposure habits and current products all matter. Whether the acne is still active is important too, as pigment is treated once the breakouts settle. In darker skin I pay particular attention to how reactive the skin is, as that decides how gently to treat.

How I classify brown marks

When the skin is inflamed by a pimple, the pigment producing cells can become overactive and leave a brown mark once the spot heals. This is post inflammatory hyperpigmentation, a change in colour only, with no change in texture, which is what separates it from a true scar. It is distinct from melasma, which forms broader, symmetrical patches driven by hormones and sun rather than by a single lesion, and which needs its own approach.

Dr Gerard Ee’s clinical note

In darker, PIH prone skin my priority is to reduce the risk of pigmentation before I reach for any energy based device. That means lower energy, longer intervals between sessions, good pre-treatment skincare and strict sun protection. I would rather take a slower, safer route and protect the skin than push hard and trigger more brown marks than I started with.

 

When I would consider a pigment laser

The mainstay for brown marks is a pigment targeting laser, and Q-Switch suits browner and more purple marks, breaking up the excess pigment so the body can clear it. It is used alongside pigment friendly skincare and sun protection. In pigment prone skin the energy is kept lower and sessions are spaced further apart. Pico lasers are not used for active acne, as they do not deliver enough heat to help the oil glands, though pigment and pore concerns are a separate matter.

When I would be cautious or wait

In darker skin I am cautious with the more aggressive energy devices and with fractional resurfacing, as they can provoke more pigment if used too hard. I would wait, rather than treat, while the acne is still active, since new breakouts simply create new marks. And I would not chase brown marks with strong treatment in someone who is not protecting their skin from the sun, as that undoes the work as fast as it is done.

Common mistakes I see

The most common mistake is treating brown marks too aggressively, which in pigmented skin often makes them worse rather than better. The second is neglecting sun protection, since sun exposure reliably darkens pigment and slows progress. The third is picking at active spots, which creates fresh pigment to treat. And the fourth is assuming long standing marks cannot be improved, which is a misconception I correct constantly, as in my experience they respond well.

How PIH differs from other pigmentation

Brown marks from acne are sometimes confused with other forms of pigmentation, such as melasma or sun spots, but they have a specific cause. Post inflammatory hyperpigmentation follows a clear trigger, the inflammation of a pimple, and it appears exactly where the breakout was. Melasma forms broader, symmetrical patches and is driven by hormones and sun. The distinction matters because the treatments and precautions differ, which is another reason an accurate assessment is the sensible starting point.

Supporting brown marks between sessions

Day-to-day care strongly influences how quickly brown marks fade. Consistent, light sun protection is the most important habit, as sun exposure darkens pigment and slows progress. Pigment friendly skincare supports the laser work between sessions, and being gentle with the skin avoids the irritation that can trigger fresh pigment. Not picking at active spots prevents new brown marks from forming, which means less pigment to treat overall. In pigmented skin, steady and gentle habits consistently outperform aggressive ones.

What you can realistically expect

Brown marks clear gradually over a series of sessions, and the timeline is usually longer in darker skin as the approach is deliberately gentle. Consistent sun protection and pigment friendly skincare are part of the plan, not optional extras. Realistic expectations are set at the first visit and adjusted as the pigment lifts.

When to see a doctor

Brown marks are worth assessing if they linger for months, keep returning with each breakout, or if you are unsure whether you are dealing with PIH or another form of pigmentation. In pigment prone skin an early assessment is especially valuable, as the wrong approach can worsen pigmentation rather than improve it.

Why Asian and darker skin is more prone to PIH

Skin with more pigment is naturally more reactive when it comes to colour. In Asian and darker skin tones, inflammation more readily triggers excess pigment, which is why brown marks are such a common after-effect of acne in Singapore. The same reactivity is the reason these skin types need a more cautious approach to lasers and energy-based devices, as the wrong settings can provoke even more pigment. Understanding this reactivity is what guides a gentler, slower treatment plan that protects the skin while it clears.The role of sun protection

Sun protection is the one area where being firm genuinely pays off with brown marks. Sun exposure darkens pigment and undoes the progress of treatment, so protecting the marks from the sun matters a great deal. For acne-prone skin the key is to choose a light, non-comedogenic product rather than a heavy, greasy one, so the pigment is protected without clogging pores. The right product, used consistently, makes a real difference to how quickly brown marks clear and stay cleared.

What the evidence shows

The approach to brown post acne marks is grounded in clinical research. Post-inflammatory hyperpigmentation is especially common in Asian and darker skin, and published experience in Asian patients supports a gentle, low-energy pigment laser to clear the excess pigment while keeping the risk of further pigmentation low. Topical azelaic acid is a useful, evidence-based partner, as it calms the pigment-forming step in the skin, helps fade discolouration and is considered safe in pregnancy. Consistent sun protection is essential, since ultraviolet light reliably darkens pigment and slows progress.

Topical options that help brown marks

Alongside laser treatment, several evidence-based topicals help brown marks fade and, just as importantly, prevent new ones. Azelaic acid calms the pigment-forming step in the skin, is gentle enough for daily use and is considered safe in pregnancy. Vitamin C and niacinamide help brighten and even the tone, and a topical retinoid speeds up skin cell turnover so pigment clears faster, though retinoids are avoided in pregnancy. Tranexamic acid, used topically or in selected cases by mouth, is a newer option that can help stubborn pigmentation. Gentle exfoliation has a role, but aggressive peels and harsh scrubs are avoided in pigment prone skin, as the irritation they cause can trigger more pigment rather than less.

The one non-negotiable is sun protection. Ultraviolet light drives the pigment cells to produce more colour, so a light, non-comedogenic sunscreen used every day protects the marks that are being treated and stops new ones from darkening. In pigmented skin, steady, gentle care consistently outperforms aggressive treatment, and it is the combination of the right topicals, sun protection and a cautious laser that gives the cleanest result.

How long brown marks take to fade

Brown marks test patience, and it helps to know what to expect. Left alone, post-inflammatory hyperpigmentation usually fades, but it can take many months, and in darker skin it often takes longer. Treatment speeds this up, but it is still gradual, working over a series of gentle sessions rather than clearing in one go. The single biggest factor in how quickly the marks fade is consistent sun protection, as ultraviolet light re-darkens pigment faster than any treatment can lift it. Steady daily habits, a suitable topical routine and a cautious, pigment aware laser together give the most reliable result, and the marks that have been present for a long time respond just as well as recent ones, so it is never too late to start.

Clear stubborn brown marks safely, the pigment-aware way.

The Clifford Clinic, 50 Raffles Place, Singapore Land Tower. Call (65) 6532 2400 or WhatsApp (65) 8318 6332 to arrange a consultation.

Frequently asked questions

Are brown acne marks permanent?

No. Brown marks are post inflammatory hyperpigmentation, a flat change in colour. They fade over time and respond to pigment laser treatment with sun protection, even when present for a while.

What is the best treatment for brown acne marks in Asian skin?

A pigment laser such as Q-Switch, used at lower energy with longer intervals in pigment prone skin, combined with sun protection and pigment friendly skincare. Aggressive devices are avoided to prevent worsening pigment.

Does sunscreen really matter for brown marks?

Yes. Sun exposure darkens pigment and undoes progress. For acne prone skin, choose a light, non-comedogenic product so you protect the marks without clogging pores.

Can old brown marks still be treated?

Yes. Sun exposure darkens pigment and undoes progress. For acne prone skin, choose a light, non-comedogenic product so you protect the marks without clogging pores.

Related reading

• Acne Treatment Singapore: How I Choose (Dr Gerard Ee)
• Q-Switch Laser (Dr Gerard Ee)
• Acne Scar Removal (Dr Gerard Ee)
• Q-Switch Laser
• Acne Scar Treatment
• Acne Treatment Singapore

References

• HealthHub Singapore. Acne. https://www.healthhub.sg/a-z/diseases-and-conditions/acne
• American Academy of Dermatology. Guidelines of care for the management of acne vulgaris. https://www.aad.org/member/clinical-quality/guidelines/acne
• Acne vulgaris. https://dermnetnz.org/topics/acne
• Q-switched Nd:YAG laser for post-inflammatory hyperpigmentation in Asian patients. PubMed. https://pubmed.ncbi.nlm.nih.gov/21122049/
• Systematic review of azelaic acid in acne, rosacea, melasma and skin ageing. J Cosmet Dermatol (2023). https://onlinelibrary.wiley.com/doi/10.1111/jocd.15923
• Dr Gerard Ee. Acne Scar Removal, Singapore. https://drgerardee.com/acne-scar-removal/

Medical disclaimer: This article is for general education and does not replace an in-person consultation. Treatment suitability, results and risks vary between individuals. Please speak with a qualified doctor before starting any acne treatment.

The post Brown Acne Marks (PIH): Pigmentation Treatment for Asian Skin appeared first on Dr Gerard Ee.

(MBBS, MRCS, Diploma in Practical Dermatology, Cardiff). He is the Founder and Medical Director of The Clifford Clinic, with over 14 years of experience in treating acne. He was among the first doctors in Singapore to utilise AGNES and AviClear. The opinions expressed in this article are his own clinical views, intended to help readers better understand their treatment options. This article is provided for general educational purposes and does not replace a personal consultation. Last reviewed: June 2026.

Clearing acne is only part of the picture, as breakouts often leave marks behind, including the flat red marks known as post inflammatory erythema and the flat brown marks known as post inflammatory hyperpigmentation. The reassuring news is that these are not scars, and lasers treat them effectively once active acne is under control. This guide explains the lasers used for acne marks, primarily the Vbeam pulsed dye laser and the Q Switch Nd:YAG, along with the laser based options that help stabilise active acne first.

My quick answer

Red acne marks are post inflammatory erythema, caused by dilated blood vessels, and they respond to the Vbeam pulsed dye laser, which is suitable for sensitive skin and pinker marks. Brown acne marks are post inflammatory hyperpigmentation, more common in Asian skin, and they respond to the Q Switch Nd:YAG pigment laser. Both are treated once active acne has settled, and laser based options such as Gold Photothermal Therapy and the long pulsed Nd:YAG can help stabilise the acne first. The choice of laser depends on whether the primary concern is redness, brown pigment, or active acne that still requires calming.

What I look for during the consultation

The assessment confirms that the marks are truly flat redness rather than brown pigment or a scar, as each requires a different treatment approach. The duration of the marks, whether they are still being reactivated by ongoing breakouts, and the sensitivity of the skin are all relevant factors. Whether the acne remains active is also important, as redness is treated only after breakouts have settled. The decision involves not only how to treat but also when to treat, as timing significantly influences the outcome.

How I classify red marks

When a pimple becomes inflamed, the small blood vessels in the area dilate, and after the pimple heals, they can remain dilated for some time, leaving a flat red or pink patch. This is known as post inflammatory erythema. It is not a scar, as the texture remains unchanged, and it differs from brown pigmentation, which is a separate pigment issue. Red marks are particularly common in fair and sensitive skin.

Dr Gerard Ee’s clinical note

With red marks, the decision often involves not just how to treat, but when. If the skin is still actively breaking out, it is usually preferable to settle the acne first, as treating redness on top of ongoing inflammation is counterproductive. Once the acne is quiet, the redness becomes a clear and treatable target, and that is when a vascular laser earns its place.

 

When I would consider Vbeam, and when I would wait

A vascular laser such as Vbeam targets the dilated blood vessels responsible for the redness, helping them settle so that the mark fades. It is particularly suitable for sensitive skin and for marks that are predominantly pink. For browner marks, a pigment laser is the more appropriate tool, which is why distinguishing between red and brown marks is important from the outset. It is preferable to wait rather than treat while new pimples continue to appear, as each fresh breakout generates new redness; therefore, the acne should be controlled first.

Common mistakes I see

The biggest mistake is picking, as squeezing re inflames the area and keeps the blood vessels dilated, prolonging the redness far longer than necessary. Another error is panicking and applying aggressive treatments to flat redness that would often fade on its own with time. Treating redness while acne is still active simply means chasing a moving target. Harsh scrubs and irritating active ingredients also perpetuate the redness.

What you can realistically expect

Red marks usually respond over a series of vascular laser sessions, with gradual fading rather than an overnight change. Many would fade on their own with time, and treatment accelerates that process once the acne is controlled. Protecting the skin from further irritation, and from the sun using a lightweight noncomedogenic product, supports the outcome. A realistic number of sessions is established at the initial consultation.

When to see a doctor

It is worth having red marks assessed if they persist for more than a few months, if they continue to be reactivated by breakouts, or if there is a desire to address them sooner. An assessment also clarifies whether the condition involves red marks, brown marks, or a scar, and whether the acne still requires control first.

Red marks and brown marks are not the same

Red marks and brown marks are often grouped together as post acne marks, but they are different issues requiring different treatments. Post inflammatory erythema, the red or pink mark, is a vascular concern caused by dilated blood vessels and responds to a vascular laser. Post inflammatory hyperpigmentation, the brown mark, is a pigment concern caused by excess melanin and responds to a pigment laser. The two can appear together, and the same breakout can leave both. Distinguishing between them is important, as a vascular laser does little for brown pigment, and a pigment laser does little for redness.

Supporting red marks between sessions

Between treatments, the goal is to avoid anything that keeps the blood vessels inflamed. This means being gentle with the skin, avoiding harsh scrubs and aggressive active ingredients that cause irritation, and resisting the urge to pick. Keeping the skin calm and well cared for gives the redness the best chance to settle and supports the results of any laser sessions. Protecting the skin from excessive sun exposure also helps, using a lightweight noncomedogenic product so that protection does not come at the cost of clogged pores.

What post-acne redness means for your skin

Post inflammatory erythema is a sign that the skin has been inflamed, not structurally damaged, which is why it remains flat and tends to settle over time. It is most common in fair and sensitive skin, where blood vessels are more visible. Understanding that the redness is vascular and temporary in nature helps clarify why a vascular laser is the appropriate tool, and why gentleness between sessions is so important for allowing it to fade.

Supporting your skin while redness settles

While red marks settle, a calm, simple routine helps more than an aggressive one. Gentle cleansing, a lightweight noncomedogenic moisturiser, and avoiding harsh active ingredients keep the skin from remaining inflamed. Sun protection with a lightweight noncomedogenic product prevents the marks from being aggravated. Leaving the skin alone, rather than picking, is the single most effective measure, as picking restarts the inflammation that caused the redness in the first place.

Vbeam pulsed dye laser for red marks in detail

Vbeam is a pulsed dye laser that emits a 595 nm wavelength, which is strongly absorbed by oxyhaemoglobin, the pigment in red blood cells. When the dilated vessels that cause post inflammatory erythema absorb this light, they are gently heated and encouraged to settle, which fades the redness without damaging the surrounding skin. Because it is selective for blood vessels and is paired with skin cooling, Vbeam is well tolerated and suitable for sensitive skin and pinker marks. Randomised studies of the pulsed dye laser support its use for post acne erythema, whether used alone or alongside other measures. As always, the redness is treated once active acne is under control. The pulsed dye laser light is also absorbed by porphyrins produced by acne bacteria, which gives it a mild antibacterial effect on active acne alongside its work on the redness.

Q-Switch Nd:YAG for brown marks and skin tone

The Q Switched Nd:YAG laser delivers extremely short, high energy pulses, usually at 1064 nm and sometimes 532 nm, that shatter excess pigment through a photoacoustic effect so the body can clear it. This makes it the preferred tool for brown post inflammatory hyperpigmentation, and the published experience in Asian patients supports a low fluence approach to reduce the risk of provoking further pigmentation. It also helps refine overall skin tone and minimise the appearance of pores.

One important point is that the Q Switch laser is not a treatment for active acne, as it does not deliver the sustained heat needed to act on the sebaceous glands. When used with a thin carbon lotion, the Q Switch laser also clears sebum and debris from the pores and reduces acne bacteria, which is why it can help refine the skin as well as lift pigment. A more detailed discussion of pigment prone skin is available in the guide to brown acne marks.

Gold PTT and long-pulsed Nd:YAG for acne stabilisation

Before marks can be treated effectively, active acne needs to be stable, and two laser based options can assist with this. Gold Photothermal Therapy uses light absorbing gold microparticles, worked into the follicles and then heated with a long pulsed 1064 nm Nd:YAG laser, to reduce the activity of the sebaceous glands; a randomised controlled trial supported this gold microparticle photothermal approach for inflammatory acne. The long pulsed 1064 nm Nd:YAG laser also has a calming, anti inflammatory effect on the skin and can help settle active inflammatory acne. The way Gold Photothermal Therapy reduces sebaceous gland activity is, in its aim, similar to how isotretinoin lowers sebum production, but it is achieved externally and without systemic medication. Stabilising the acne first, with these or with a broader medical plan, is what allows marks to be treated cleanly afterwards rather than chasing a moving target.

What the evidence shows

The treatment of red post acne marks is well supported by clinical research. Post inflammatory erythema is a vascular change, and the pulsed dye laser, the vascular laser used in Vbeam, has been shown in controlled studies to improve post acne redness, whether used alone or combined with other measures. As each fresh breakout generates new redness, both the evidence and clinical practice point to controlling active acne first, then treating the residual redness. Gentle skincare and daily sun protection support the outcome between sessions.

Settle stubborn post-acne redness the right way.

The Clifford Clinic, 50 Raffles Place, Singapore Land Tower. Call (65) 6532 2400 or WhatsApp (65) 8318 6332 to arrange a consultation.

Frequently asked questions

Are red acne marks the same as scars?

No. Red marks are post inflammatory erythema, a flat change in colour resulting from dilated blood vessels. Scars involve a change in skin texture. Red marks are not scars and are treated differently.

What treatment works best for red acne marks?

A vascular laser that targets the dilated vessels works best. Vbeam is particularly well suited for sensitive skin and pink marks. Active acne should be controlled first.

Will my red marks fade without treatment?

Many red marks do fade slowly over months. Treatment can accelerate this process, and protecting the skin from picking and irritation helps the marks settle sooner.

Why are my red marks not going away?

Ongoing breakouts, squeezing, and harsh skincare keep the blood vessels inflamed. Controlling the acne and allowing the skin to recover usually permits the redness to settle, with laser therapy available to accelerate the process.

Related reading

• Acne Treatment Singapore: How I Choose (Dr Gerard Ee)
• Vbeam (Dr Gerard Ee)
• Q-Switch Laser (Dr Gerard Ee)
• Gold PTT for Acne (Dr Gerard Ee)
• Q-Switch Laser (Dr Gerard Ee)
• Acne Scar Removal (Dr Gerard Ee)
• Vbeam Laser Treatment

References

• HealthHub Singapore. Acne. https://www.healthhub.sg/a-z/diseases-and-conditions/acne
• American Academy of Dermatology. Guidelines of care for the management of acne vulgaris. https://www.aad.org/member/clinical-quality/guidelines/acne
• Acne vulgaris. https://dermnetnz.org/topics/acne
• Pulsed dye laser for post-acne erythema: randomised comparative study. PubMed. https://pubmed.ncbi.nlm.nih.gov/40833510/
• Efficacy of pulsed dye laser for acne vulgaris: systematic review and meta-analysis. PubMed. https://pubmed.ncbi.nlm.nih.gov/34923532
• Systematic review of vascular lasers for inflammatory acne vulgaris. Lasers Med Sci. PubMed. https://pubmed.ncbi.nlm.nih.gov/40167813
• Q-switched Nd:YAG laser for post-inflammatory hyperpigmentation in Asian patients. PubMed. https://pubmed.ncbi.nlm.nih.gov/21122049/
• Q-switched 1064 nm Nd:YAG laser with carbon suspension for acne vulgaris: randomised controlled study. PubMed. https://pubmed.ncbi.nlm.nih.gov/22033354
• Long-pulsed 1064 nm Nd:YAG laser for inflammatory acne: randomised clinical trial. PubMed. https://pubmed.ncbi.nlm.nih.gov/37592125
• Selective photothermolysis of sebaceous follicles with gold microparticles for acne. PubMed. https://pubmed.ncbi.nlm.nih.gov/25748556/
• Dr Gerard Ee. Acne Scar Removal, Singapore. https://drgerardee.com/acne-scar-removal/

Medical disclaimer: This article is for general education and does not replace an in-person consultation. Treatment suitability, results and risks vary between individuals. Please speak with a qualified doctor before starting any acne treatment.

The post Lasers for Acne Marks: Vbeam, Q-Switch and Acne-Stabilising Lasers appeared first on Dr Gerard Ee.

(MBBS, MRCS, Diploma in Practical Dermatology, Cardiff). He is the Founder and Medical Director of The Clifford Clinic, with over 14 years of experience in treating acne. He was among the first doctors in Singapore to utilise AGNES and AviClear. The opinions expressed in this article are his own clinical views, intended to help readers better understand their treatment options. This article is provided for general educational purposes and does not replace a personal consultation. Last reviewed: June 2026.

Acne care is not only about clearing breakouts. It also involves understanding what they leave behind, as the marks and scars that remain are often what concerns individuals most. One of the most common points of confusion is between acne marks and acne scars, which are entirely different issues requiring entirely different treatment approaches. Distinguishing between them is the first step in any sensible plan.

My quick answer

Acne marks are flat changes in colour without any alteration in skin texture. Red marks are known as post inflammatory erythema, or PIE, while brown marks are referred to as post inflammatory hyperpigmentation, or PIH.

True acne scars involve changes in the texture and depth of the skin, such as ice pick, boxcar, and rolling scars. Marks are treated with lasers such as Vbeam for redness and Q Switch for brown pigment, whereas scars require resurfacing or remodelling. Active acne is always addressed first.

What I look for during the consultation

The key question is whether the problem involves colour, texture, or both. Marks appear as flat patches of colour on otherwise smooth skin, while scars involve a depression that catches the light. Assessing the skin under indirect, angled lighting reveals textural changes that are not visible under flat lighting. Whether the acne remains active also matters, as marks and scars are treated only after breakouts have been controlled. Redness, brown pigment, and true scarring are assessed separately before any recommendations are made, as each responds to a different treatment.

How I classify marks and scars

Red and brown marks are colour changes without any depression in the skin. Red marks arise from dilated blood vessels remaining after inflammation, while brown marks result from excess pigment, which is particularly common in Asian skin. True scars involve altered skin structure and present in recognisable types: narrow, deep ice pick scars; broader boxcar scars with defined edges; and soft, tethered rolling scars. Most individuals have a mixture of these, often with flat marks layered over them.

Dr Gerard Ee’s clinical note

Before recommending any laser, the first question to settle is straightforward. Is the problem one of colour, texture, or both? Red and brown marks present as colour changes without depression, whereas a depression in the skin indicates textural change, which constitutes a scar. Getting this right at the outset determines the entire treatment plan, and it is where much treatment goes wrong when approached too hastily

When I would treat marks, and when I would wait

Flat marks are treated once active acne is under control, as new breakouts simply create new marks. Red marks respond to a vascular laser such as Vbeam, which is suitable for sensitive skin and pinker marks, while brown marks respond to a pigment laser such as Q Switch. In pigment prone skin, the approach is gentler, with lower energy settings and strict sun protection. It is preferable to wait rather than treat while the skin is still actively breaking out, as treating colour changes on top of ongoing inflammation is counterproductive.

Common mistakes I see

A frequent mistake is treating a mark as though it were a scar, or a scar as though it were a mark, which wastes time and resources and can potentially worsen the condition. Another common misconception, encountered almost weekly, is that older scars are harder to treat than newer ones. Clinical experience indicates that this is not the case; a scar present for years can respond just as well as a recent one. The most preventable mistake of all is squeezing, which transforms a blemish that might have faded into a lasting mark or scar.

What you can realistically expect

Flat marks generally improve faster than scars, fading over a series of laser sessions once the acne has settled, supported by sun protection to prevent pigment from darkening again. Scars take longer to improve, as the skin is being remodelled rather than simply cleared of colour, and improvement is gradual and cannot be accelerated. Realistic expectations, including the likely number of sessions, are established at the initial consultation.

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When to see a doctor

An assessment is worth considering if there is uncertainty about whether the condition involves marks or scars, if they are a source of concern, or if previous treatment has not been effective. A consultation also serves to confirm whether acne still requires active control, as marks and scars are treated only on stable skin.

A simple way to check at home

A rough sense of the condition can be gained at home, although this does not replace a proper clinical assessment. Examining the marks in angled daylight rather than straight on bathroom lighting can be helpful, as flat marks, whether red or brown, appear as patches of colour on otherwise smooth skin, while a true scar casts a small shadow that shifts as the face is tilted. Gently running a fingertip over the area can also assist, since many scars can be felt as a change in surface level, whereas marks cannot. Colour without any change in texture generally indicates marks, which are typically easier to treat than scars.

How squeezing creates both marks and scars

It is worth understanding why picking is discouraged so strongly, as it is the common thread behind both marks and scars. Squeezing a pimple forces inflammation deeper into the skin and ruptures the surrounding tissue. In the short term, this leaves more redness and more pigment, which become the flat marks that individuals often find concerning. In the longer term, the deeper damage can destroy the structural integrity of the skin and leave a permanent scar. A blemish that would have faded in days can become a mark that lasts months, or a scar that lasts years, all from a few seconds of squeezing.

What to expect from treatment timelines

Flat marks generally improve faster than scars. Red and brown marks fade over a series of laser sessions once active acne has settled, supported by sun protection to prevent pigment from darkening again. True scars take longer to improve, as the skin is being remodelled rather than simply cleared of colour, and improvement builds gradually over several sessions. Setting realistic expectations at the initial consultation allows progress to be measured against a clear plan rather than estimated.

Why diagnosis comes before treatment

Because marks and scars are so different, and because scars themselves present in several types, an accurate diagnosis is what makes treatment effective. Treating a mark as a scar wastes time and resources, and expecting a colour focused laser to lift a deep scar leads to disappointment. Separating redness, brown pigment, and true textural change at the outset allows each issue to be matched with the appropriate treatment, which is why the assessment matters as much as the treatment itself.

The lasers and devices matched the marks and scars

Because marks and scars are different issues, they call for different tools. For flat colour, the answer lies in light and laser therapy. Red marks, or post inflammatory erythema, respond to the Vbeam pulsed dye laser, which targets the dilated blood vessels responsible for the redness. Brown marks, or post inflammatory hyperpigmentation, which is particularly common in Asian skin, respond to the Q Switch Nd:YAG laser, which breaks down excess pigment for the body to clear. A more detailed explanation of how Vbeam and Q Switch work, and the indications for each, is available in the dedicated guide to lasers for acne marks.

Depressed, or atrophic, scars involve textural change rather than colour, and they are treated by rebuilding collagen. Radiofrequency microneedling, with devices such as Infini and Secret RF, delivers energy into the deeper layers to remodel the scar from below. Fractional carbon dioxide laser resurfaces and tightens the surface and the scar edges, while the Fraxel erbium glass laser, a nonablative 1550 nm fractional laser, stimulates collagen with less downtime. Pico MLA, a focused picosecond laser, is useful for finer scarring and enlarged pores. These modalities are usually combined with subcision for tethered rolling scars and TCA CROSS for narrow ice pick scars, with the combination matched to the scar types identified during mapping.

What the evidence shows

Acne marks and scars are common and well studied. Research indicates that a substantial proportion of individuals who have experienced significant acne go on to develop scars, with the risk rising as acne becomes more severe, which is the strongest argument for treating acne early. The marks and scars themselves respond to different, evidence based treatments. Flat red post inflammatory erythema improves with a vascular pulsed dye laser. Flat brown post inflammatory hyperpigmentation responds to pigment lasers and to azelaic acid, which calms the pigment forming step in the skin. True depressed scars are treated with resurfacing, radiofrequency microneedling, subcision, or focused acid depending on the type. Importantly, the literature supports treating older scars as well, so it is rarely too late.

Find out whether you have marks, scars, or both.

The Clifford Clinic is located at 50 Raffles Place, Singapore Land Tower. To arrange a consultation, please call (65) 6532 2400 or WhatsApp (65) 8318 6332.

Frequently asked questions

How do I know if I have acne marks or acne scars?

Marks are flat with no change in skin texture, while scars involve a visible depression. Viewing the skin under angled lighting makes the difference clear, and a consultation confirms the distinction precisely.

Will my red and brown acne marks go away on their own?

Many flat marks fade slowly over months, and treatment can accelerate this process. Red marks respond to vascular laser therapy and brown marks to pigment laser therapy, once active acne has been controlled.

Are old acne scars harder to treat than new ones?

In clinical experience, older scars can respond just as well as recent ones, so it is rarely too late to treat them. The key lies in matching the treatment to the scar type.

Can marks and scars be treated at the same time?

A treatment plan often addresses colour and texture in stages, always after active acne has been brought under control. The sequence is tailored to the individual’s skin condition.

Related reading

• Acne Treatment Singapore: How I Choose (Dr Gerard Ee)
• Vbeam (Dr Gerard Ee)
• Q-Switch Laser (Dr Gerard Ee)
• Vbeam (Dr Gerard Ee)
• Secret RF for Acne Scars (Dr Gerard Ee)
• INFINI RF Microneedling (Dr Gerard Ee)
• Fractional CO2 Laser (Dr Gerard Ee)
• Fraxel (Erbium Glass) Laser (Dr Gerard Ee)
• Pico MLA Laser (The Clifford Clinic)
• Acne Scar Removal (Dr Gerard Ee)

References

• HealthHub Singapore. Acne. https://www.healthhub.sg/a-z/diseases-and-conditions/acne
• American Academy of Dermatology. Guidelines of care for the management of acne vulgaris. https://www.aad.org/member/clinical-quality/guidelines/acne
• Acne vulgaris. https://dermnetnz.org/topics/acne
• Prevalence and risk factors of acne scars in patients with acne vulgaris. PubMed. https://pubmed.ncbi.nlm.nih.gov/37357642/
• Pulsed dye laser for post-acne erythema: randomised comparative study. PubMed. https://pubmed.ncbi.nlm.nih.gov/40833510/
• Q-switched Nd:YAG laser for post-inflammatory hyperpigmentation in Asian patients. PubMed. https://pubmed.ncbi.nlm.nih.gov/21122049/
• Systematic review of azelaic acid in acne, rosacea, melasma and skin ageing. J Cosmet Dermatol (2023). https://onlinelibrary.wiley.com/doi/10.1111/jocd.15923
• Fractional carbon dioxide versus erbium laser for atrophic acne scars: systematic review and meta-analysis. J Cosmet Dermatol. https://pubmed.ncbi.nlm.nih.gov/38733085/
• Fractional microneedle radiofrequency, with and without subcision, for atrophic acne scars: randomised split-face study. PubMed. https://pubmed.ncbi.nlm.nih.gov/28432727/
• Dr Gerard Ee. Acne Scar Removal, Singapore. https://drgerardee.com/acne-scar-removal/

Medical disclaimer: This article is for general education and does not replace an in-person consultation. Treatment suitability, results and risks vary between individuals. Please speak with a qualified doctor before starting any acne treatment.

The post Acne Marks vs Acne Scars: How to Tell PIH, PIE and True Scarring Apart appeared first on Dr Gerard Ee.

(MBBS, MRCS, Diploma in Practical Dermatology, Cardiff). He is the Founder and Medical Director of The Clifford Clinic, with over 14 years of experience in treating acne. He was among the first doctors in Singapore to utilise AGNES and AviClear. The opinions expressed in this article are his own clinical views, intended to help readers better understand their treatment options. This article is provided for general educational purposes and does not replace a personal consultation. Last reviewed: June 2026.

Acne treatment is not about reaching for the same product that everyone else uses, and this applies equally to body acne. It begins with confirming what the breakouts actually are, because acne, folliculitis, and irritation can appear similar on the back and chest yet require different treatment approaches. Body acne, sometimes referred to as bacne, has its own distinct triggers and responds well once it has been properly assessed and matched with the appropriate treatment.

My quick answer

Back, chest, and shoulder acne is driven by oil, sweat, friction, and blocked pores, all of which are amplified by Singapore’s humid climate, gym routines, and tight or occlusive clothing. Treatment begins with confirming that the condition is truly acne rather than folliculitis, and then combines appropriate skincare with oil reducing and congestion clearing treatments. As with facial acne, active breakouts are addressed before any marks or scars are treated.

What I look for during the consultation

The first step is the diagnosis itself, distinguishing true acne from folliculitis, which is an inflammation of the hair follicles, and from simple heat rash or friction irritation, as each condition requires a different approach. The assessment then covers the degree of skin oiliness, the location of breakouts, and whether they tend to recur. The clinical history is also relevant, including sweat and gym habits, clothing choices, backpacks, hair and body products, and supplements such as whey protein. Confirming the diagnosis is never overlooked, as treating the wrong condition can waste considerable time.

How I classify body acne

The skin on the back, chest, and shoulders contains numerous oil glands and is heavily exposed to sweat and friction, which makes it prone to blocked pores and breakouts. Body acne is classified by type and severity in a manner similar to facial acne, but the practical challenge lies in distinguishing it from look alike conditions. Folliculitis centres on the hair follicles and may require a different treatment approach, while true acne follows the familiar pattern of blocked and inflamed pores.

Dr Gerard Ee’s clinical note

With body breakouts, the first step is always to confirm whether the presentation is truly acne, or instead folliculitis or irritation, as these conditions are not the same and require different treatment approaches. Individuals may spend months using the wrong product simply because the original problem was never correctly identified. Getting the diagnosis right is most of the solution.

When I would consider treatment

Once the condition is confirmed to be acne, treatment follows principles similar to those used for facial acne, adapted for the body. Suitable medical grade skincare for the body forms the foundation, helping to control oil and clear congestion. Oil reducing treatments are considered for generally oily skin, while deep cleansing facial treatments are appropriate where significant congestion is present. Where breakouts recur persistently in the same locations, the same targeted approach used on the face applies. Marks or scars are addressed only after active breakouts have settled.When I would not treat it as acne

If the assessment points to folliculitis or simple irritation rather than acne, the condition is not treated as acne, as the approaches differ and the wrong one will not be effective. Caution is also exercised with aggressive treatment on the body in pigment prone skin, and scar treatment is not initiated while breakouts remain active. The diagnosis determines everything, so confirming it comes before any treatment is selected.Common mistakes I see

The most common mistake is spending months using the wrong product because the breakouts were never properly diagnosed. Other errors include leaving sweat on the skin after exercise, wearing tight nonbreathable clothing, and using heavy body or hair products that run onto the back and chest. Whey protein, which many gym goers rely on, can trigger breakouts in clinical experience. As with the face, squeezing body lesions is a reliable way to leave marks, since the back and chest scar just as readily.

What you can realistically expect

Body acne usually clears with a reasonable degree of patience, and the back, chest, and shoulders may respond slightly more slowly than the face, as the skin in these areas is thicker and more exposed to sweat and friction. Active breakouts are brought under control first, after which marks and any scarring are addressed. This staged approach adds time but yields a better final outcome. Daily habits, such as showering promptly after exercise and wearing breathable fabrics, support the treatment throughout.

When to see a doctor

An assessment is worth considering if body acne is persistent, inflamed, or painful, if it is leaving marks, or if over-the-counter washes are not providing relief. A consultation also helps settle the important question of whether the condition is truly acne or something that resembles it, so that treatment is directed at the right target from the outset.

Other conditions that mimic body acne

Several conditions on the back and chest can be mistaken for acne. Folliculitis, an inflammation of the hair follicles, can appear almost identical but requires a different treatment approach. Simple heat rash and irritation from friction can also produce bumps, particularly in a humid climate. Because the right treatment depends entirely on an accurate diagnosis, distinguishing these conditions is one of the most valuable aspects of a consultation. Many individuals spend months using the wrong product simply because what appeared to be acne was never confirmed as such. Skincare and prevention for the body

Body skin tolerates slightly more robust care than the face, but the principles remain the same. A suitable cleansing routine helps control oil and clear congestion, and noncomedogenic products matter here as well, including any moisturiser or sunscreen used on exposed skin. Wearing breathable fabrics, changing out of damp clothing, showering promptly after exercise, and keeping backpack straps and equipment clean all help reduce the trapped sweat and friction that drive body breakouts. Avoiding aggressive scrubbing and squeezing protects the skin while treatment takes effect.

How long body acne takes to clear

Body acne usually takes some patience to clear, and the back, chest, and shoulders may respond slightly more slowly than the face, as the skin in these areas is thicker and more exposed to sweat and friction. As with facial acne, skincare and treatments work over weeks rather than days. Active breakouts are brought under control first, and only then are marks and any scarring addressed. This staged approach adds time but produces a better final outcome. A realistic timeline is established at the initial consultation.

Gym and sports acne

For those who train regularly, a few habits can make a substantial difference. Showering promptly after exercise removes sweat and oil before they clog pores, while wearing breathable clothing and changing out of damp gym wear reduces trapped sweat and friction. Keeping backpack straps and equipment clean is also helpful, and it is worth noting that whey protein can trigger breakouts in some individuals. None of this replaces treatment, but it makes body acne significantly easier to manage alongside it.

What the evidence shows

The most important evidence based point about body acne is that not every breakout on the back and chest is truly acne. A yeast driven condition known as Malassezia folliculitis closely mimics truncal acne, but it tends to spare the face, lacks blackheads and whiteheads, is often itchy, and presents as uniform small bumps. The distinction matters because the treatments are opposing: research indicates that the antibiotics used for acne can exacerbate this condition, while antifungal therapy improves it. This is why confirming the diagnosis is the first step. Where the condition is genuinely acne, the same evidence based principles applied to facial acne are relevant, including the topical retinoid and benzoyl peroxide combination recommended in dermatology guidelines.

Treating and preventing body acne day to day

Once the condition is confirmed to be acne, body acne responds to the same principles used for facial acne, adapted for thicker skin and larger surface areas. A benzoyl peroxide wash, left on the skin briefly before rinsing, offers a practical means of reducing bacterial load across the back and chest, while a topical retinoid helps maintain clear pores. For extensive or stubborn truncal acne, a physician may consider a short course of oral therapy. Oral isotretinoin remains an option for severe, scarring body acne that has not responded adequately to other treatments.

Prevention matters just as much on the body. Showering promptly after exercise removes the sweat and oil that clog pores, while breathable clothing and changing out of damp gym wear reduce friction and trapped moisture. Keeping backpack straps and equipment clean is also beneficial. Being mindful that some hair and body products can run onto the back and chest, and resisting the urge to squeeze, helps protect against marks and scars that form on the body just as they do on the face. If the breakouts are determined to be a yeast driven folliculitis rather than acne, an antifungal approach is used instead, which is why confirming the diagnosis is the first step.

How body acne treatment differs from the face

Although the principles are the same, treating the body is not identical to treating the face. The skin on the back and shoulders is thicker and the area is much larger, so leave on creams alone are often impractical. A medicated wash applied over the entire area becomes a practical method of delivering treatment. Because truncal acne is frequently more extensive, a physician is somewhat more likely to consider adding an oral therapy to bring it under control. Severe, scarring body acne is one of the clearer indications for considering oral isotretinoin. The back is also harder to reach and easy to neglect, which is why breakouts there are often left untreated for longer than facial acne and are more likely to have scarred by the time they are addressed. Addressing it earlier, and confirming that it is acne rather than a look alike condition, yields a substantially better outcome.

Clear up back, chest and shoulder breakouts.

The Clifford Clinic is located at 50 Raffles Place, Singapore Land Tower. To arrange a consultation, please call (65) 6532 2400 or WhatsApp (65) 8318 6332.

 

Frequently asked questions

What causes acne on the back and chest?

Oil, sweat, friction, and blocked pores are all worsened by humidity, tight clothing, and gym routines. The back and chest have numerous oil glands and are heavily exposed to sweat and friction.

How do I know if it is bacne or folliculitis?

These conditions can appear similar but require different treatment approaches. A proper assessment distinguishes true acne from folliculitis and simple irritation, which is essential for selecting the appropriate treatment.

Can back and chest acne be treated like facial acne?

The principles are similar but adapted for the body. Skincare forms the foundation, supported by oil reducing and congestion clearing treatments, while marks are addressed only after active acne has settled.

How can I prevent gym-related body acne?

Key preventive measures include showering promptly after exercise, wearing breathable clothing, changing out of damp gym wear, keeping equipment clean, and avoiding squeezing lesions.

Related reading

• Acne Treatment Singapore: How I Choose (Dr Gerard Ee)
• Back Acne (Bacne) Treatment
• AviClear (Dr Gerard Ee)
• HydraFacial Deep Pore Cleansing
• Acne Treatment Singapore

References

• HealthHub Singapore. Acne. https://www.healthhub.sg/a-z/diseases-and-conditions/acne
• American Academy of Dermatology. Guidelines of care for the management of acne vulgaris. https://www.aad.org/member/clinical-quality/guidelines/acne
• Acne vulgaris. https://dermnetnz.org/topics/acne
• Malassezia (Pityrosporum) folliculitis masquerading as recalcitrant acne. PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7996476/
• The Clifford Clinic. Back Acne (Bacne) Treatment. https://cliffordclinic.com/skin/treatment-back-acne-treatment-bacne/

Medical disclaimer: This article is for general education and does not replace an in-person consultation. Treatment suitability, results and risks vary between individuals. Please speak with a qualified doctor before starting any acne treatment.

The post Back, Chest and Shoulder Acne (Bacne) Treatment in Singapore appeared first on Dr Gerard Ee.