Nose filler is the most searched non-surgical nose treatment in Singapore and the one with the least margin for error. This guide explains how a hyaluronic acid (HA) nose filler and a calcium hydroxylapatite (CaHA) nose filler such as Radiesse actually work, what the published data says about safety, how long the result lasts, what the side effects are and who should not have it.
It is the long read behind two shorter pages: the nose fillers in Singapore treatment page, which covers price and what happens on the day, and the nose shape concerns page, which sets out the low bridge, dorsal hump, flat tip and curved nose one by one.
What nose filler can and cannot do
Nose filler is a gel injected under the skin of the nose to add height to the bridge, project the tip or straighten the line of the profile. It is sometimes called non-surgical rhinoplasty or a liquid nose job. Every result it produces comes from adding volume, so it can make a nose taller, straighter and more defined, and it can never make a nose smaller, narrower or shorter.
In the largest systematic review to date, covering 9,657 patients across 30 studies, hyaluronic acid was the filler used in 96.8 per cent of non-surgical rhinoplasty cases and calcium hydroxylapatite in 1.2 per cent, and overall patient satisfaction was 99 per cent (Song 2024). The nasal hump was the most common reason for treatment across 23 studies of HA nose filler, and the tip and columella were the most commonly injected sites (Mortada 2024).
Those figures describe a treatment that works well for the shapes it suits. The rest of this guide is about how it works, and where the risk sits.
How hyaluronic acid nose filler works
Hyaluronic acid is a sugar molecule your skin already makes. In a filler it is cross-linked into a gel firm enough to hold its shape under the skin. For the nose I use an HA filler from the firmer end of the range, because a soft gel spreads sideways along the bridge and widens it instead of raising it.
The gel is placed deep, on the bone or cartilage in the midline of the nose, in small amounts. On the bridge it builds height from the radix between the eyes down to the supratip. At the tip a very small volume at the tip and columella pushes the tip forward. The result is visible immediately and settles over one to two weeks as the swelling goes down.
HA filler has one property no other nose filler has: it can be dissolved. Hyaluronidase, an enzyme that breaks down hyaluronic acid, reverses an HA filler within hours. That matters for a result you do not like, and it matters far more for a blocked blood vessel, which is why HA is the default in the nose.
How CaHA (Radiesse) nose filler works
Calcium hydroxylapatite is the mineral that makes up bone. In a CaHA filler such as Radiesse, microspheres of it are suspended in a gel carrier. The carrier gives immediate volume, and over the following months the microspheres stimulate your own fibroblasts to lay down collagen around them, so part of the final result is your own tissue rather than the product.
It is firmer than HA, which suits the bridge, and it lasts longer, because collagen does not break down on the timescale of a gel. Its use in the nose was first described for smoothing contour irregularities after surgical rhinoplasty, where 85 per cent of patients rated the result good to excellent at a mean dose of 0.19 ml (Stupak 2007).
It cannot be dissolved. There is no enzyme for calcium hydroxylapatite, so an unwanted result has to be waited out, and a vascular occlusion caused by CaHA cannot be reversed the way an HA occlusion can. That is why I place CaHA only on the bone at the bridge and the radix, never at the tip, and why I treat it as a considered choice for a patient who has already had a good HA result rather than as an upgrade.
HA vs CaHA nose filler: which to choose
The difference that matters is reversibility. Everything else follows from it.
| HA nose filler | CaHA nose filler (Radiesse) | |
|---|---|---|
| What it is | Cross-linked hyaluronic acid gel | Calcium hydroxylapatite microspheres in a gel carrier |
| Where it is used in the nose | Bridge, radix, tip and columella | Bridge and radix only, on bone |
| Reversible | Yes, with hyaluronidase, within hours | No |
| How long it lasts | Typically 8 to 12 months, often longer in the nose | Longer than HA; part of the result is your own collagen |
| Best for | First treatment, the tip, anyone who wants the option to adjust | A repeat patient who is happy with the shape and wants duration |
| Price per syringe, before GST | $1,200 | $1,400 |
For a first nose filler treatment I recommend HA in almost every case. You see the shape, you live with it for a year, and if you want the same shape to last longer, CaHA on the bridge is the conversation at the review.
Is nose filler safe? Yes, with the right precautions
Nose filler is safe when it is placed with the precautions the nose needs, which is why most of this page is about those precautions. The serious risk with any facial filler is the gel entering an artery. In the nose that artery connects, through the dorsal nasal and angular arteries, to the ophthalmic artery that supplies the eye, so an occlusion here can cause loss of skin on the nose or, in the worst reported cases, loss of vision.
The published numbers put the risk in proportion. In the world literature review of filler-related vision loss, the nasal region was the injection site in 56.3 per cent of the 48 cases reported between 2015 and 2018, more than any other site, and HA was the filler involved in 81.3 per cent, simply because HA is the filler most used (Beleznay 2019). Across 9,657 non-surgical rhinoplasty patients, arterial occlusion of any kind occurred in 0.27 per cent (Song 2024). A 2026 systematic review of vision loss specifically after nose filler found 22 published cases worldwide, with the bridge or dorsum the injection site in 57 per cent, and full recovery of vision in only 27 per cent (Pistone 2026).
Two anatomical facts explain where the danger lies. The dorsal nasal artery runs roughly 4 to 5 mm to either side of the midline of the nose, superficial over the bone and deeper over the cartilage (Choi 2018). On Doppler ultrasound the midline of the radix is free of the artery, while at the rhinion, the junction of bone and cartilage, the artery can sit within 1.2 mm of the bone (Moon 2021). So the midline, deep on the bone at the radix, is the safe corridor, and the rhinion and anything off the midline are not.
Can nose filler cause blindness? Rarely, and here is how I keep it that way
The short answer is that it can, it almost never does, and the whole way I do nose filler is built so that it does not.
Put the numbers in order. Across 9,657 published nose filler patients, a blocked artery of any kind, including the minor skin ones that resolve with treatment, occurred in 0.27 per cent, or about one in 370 (Song 2024). Vision loss is a much smaller fraction of that. A 2026 review searched the world literature for every reported case of vision loss after nose filler and found 22 (Pistone 2026). Twenty-two cases, across every country and every injector, against a treatment performed thousands of times a day. The risk is real, it is very low, and it is lower still in hands that treat the nose with the respect it needs.
What makes the nose the site where this matters is anatomy: its arteries connect to the eye through the dorsal nasal and angular arteries, and the tissue is tight, so filler pushed in under high pressure can travel backwards along a vessel. None of that is a reason to avoid nose filler. It is a reason to choose where you have it done.
How I keep the risk low
- Needle, midline, on the bone. The paired arteries run either side of the midline, roughly 4 to 5 mm out (Choi 2018). I use a needle rather than a cannula on the dorsum because it is more accurate in my hands and lets me go down to the bone and the periosteum, the safest plane there is.
- Aspiration before every pass. Pull back on the plunger; if blood enters the hub, the needle is in a vessel and it comes out.
- 0.05 ml at a time, slowly. No single push is large enough or fast enough to drive a column of filler back along an artery.
- The rhinion is not injected. The junction of bone and cartilage is where the dorsal nasal artery can sit within 1.2 mm of the periosteum (Moon 2021). Height across it is built from the radix above and the supratip below.
- The tip gets the smallest volumes of all, because the lateral nasal artery crosses it, and crosses the midline in about one in five noses (Lu 2022).
- HA by default, so it can be undone. Hyaluronidase dissolves an HA filler within hours. It is drawn up and on the tray before the first injection, and if the skin blanches, mottles or the pain is out of proportion, the filler is dissolved on the spot. This is the single most effective treatment for an HA occlusion (DeLorenzi 2014).
If the rare event ever happened: what is on site
Most clinics that offer nose filler can dissolve it. Fewer can do what comes after. The Clifford Clinic has its own hyperbaric oxygen (HBOT) chamber on the premises. Hyperbaric oxygen is the recognised second-line treatment for a filler occlusion, used to keep skin and retinal tissue alive while the vessel is cleared (DeLorenzi 2014), and the 2026 review of vision-loss cases singled it out as the treatment that showed promise where others had failed (Pistone 2026). Having it under the same roof means the interval between recognising a problem and treating it is measured in minutes, not in a transfer to another facility.
So the answer to “where should I have nose filler done?” is: somewhere the injector treats the nose as the high-anatomy site it is, uses a dissolvable filler, keeps the antidote in the room and has the next line of treatment on site. That is the set-up here.
I have performed nose filler since 2012 and nose thread lifts since 2014, and have not had a vascular occlusion in either.
Nose filler danger zones
Every part of the nose has an artery near it. These are the ones that decide where the filler goes and where it does not.
| Zone | Vessel | What it means for injection |
|---|---|---|
| Radix (between the eyes) | Dorsal nasal artery branches from the ophthalmic artery here; the intercanthal vein sits in the midline of the radix (Moon 2021) | Deep on the bone in the midline is the safe plane; anything superficial or lateral is not |
| Rhinion (bone–cartilage junction) | Dorsal nasal artery can lie within 1.2 mm of the periosteum here (Moon 2021) | Not injected directly; height across it is built from above and below |
| Upper dorsum, either side of the midline | Dorsal nasal artery 4–5 mm lateral, superficial over bone, deeper over cartilage (Choi 2018); crosses the midline in 16 per cent of noses (Lu 2022) | Midline only; small volumes; aspirate |
| Supratip | Branches mostly from the dorsal nasal artery (Lu 2022) | Deep, midline, small volumes |
| Nasal tip and columella | Lateral nasal artery crosses the tip and the columellar artery runs up the columella; the lateral nasal artery crosses the midline in 18 per cent (Lu 2022) | The most cautious zone: smallest volumes, slowest injection, HA only |
| Alar base and nasolabial junction | Angular artery, the link between the facial and ophthalmic systems | Not a nose filler site; treated only as part of nasolabial fold filler with its own technique |
The figures come from cadaver and Doppler studies in Asian noses, which is the anatomy most of my patients have.
How nose filler is placed safely
The technique follows from the anatomy. Filler goes in the midline, on the periosteum, away from the paired vessels either side. I aspirate before injecting, pulling back on the syringe to check the needle is not in a vessel. I inject slowly at low pressure, because high pressure is what forces gel backwards along an artery, and in small aliquots, so any single bolus is too small to matter. At the tip, the most cautious area, the volumes are smaller still.
Hyaluronidase is in the room, drawn up, before the first injection. If the skin blanches or pain is out of proportion, the HA filler is dissolved immediately, on the spot, which is the single most effective treatment for an HA occlusion and the reason the emergency protocol for fillers is built around it (DeLorenzi 2014). This is also the reason I do not use CaHA at the tip or off the midline: there is no equivalent antidote.
A nose that has had surgical rhinoplasty is not a routine nose to inject, because previous surgery alters the blood supply. It is not an automatic no, but it changes the risk calculation and I say so explicitly rather than treat it as a standard case.
How long nose filler lasts
Longer than filler elsewhere in the face. The nose barely moves, so the gel is not worked away by muscle the way it is around the mouth. A literature review of 16 studies found that most authors report a duration of 8 to 12 months, and the remainder report longer, up to eight years in one series (Beneduce 2023).
That persistence has a downside. HA filler placed years ago can still be there, spreading sideways and widening the bridge, a delayed change that has been named the “Avatar nose” and confirmed on ultrasound years after a single injection (Lau 2025). If you have had nose filler before and it now looks broader than when you started, the answer is not another syringe; the first step is establishing how much of the old filler is still in place, and dissolving it if it is.
A CaHA filler lasts longer than HA because part of the result is collagen, but the exact duration in the nose has not been established in a controlled study, and I say so rather than quote a figure.
Nose filler side effects and downtime
Swelling, bruising and tenderness for three to five days are usual. Small lumps can occur and settle. In the pooled data across 9,657 patients, some complication was recorded in 39 per cent of cases, and almost all of it was redness and swelling, which accounted for 28 per cent on its own (Song 2024). Those are the expected effects of a needle in the nose, not complications in the sense that matters.
Downtime is practical rather than medical. Keep the area clean and leave it alone. No pressing, massaging or wearing spectacles that rest heavily on the bridge for two weeks, so the gel sets in the shape it was placed. A review appointment is included, and that is where any small adjustment is made.
Who should not have nose filler
Filler is postponed or declined if there is an active skin infection or inflamed acne over the nose, during pregnancy or breastfeeding, where there is a known allergy to a component of the product, and where an autoimmune or connective tissue condition is active. Blood-thinning medication is not an absolute barrier but it raises the bruising risk and needs discussing beforehand.
Filler is also the wrong treatment, rather than an unsafe one, for a nose that needs to be smaller. A wide nose, a bulbous tip, a long nose or a large hump are surgical shapes. Filling around a large hump raises the whole bridge and the nose ends up bigger. I would rather say that at the consultation than after a syringe.
The four shapes filler does suit, the low bridge, the small to moderate hump, the flat tip and the curved nose, are described one by one on the nose shape concerns page.
Nose filler or nose threads: which suits you better
I do both, and they are not interchangeable. Filler adds volume where it is placed. Threads add a scaffold along the length of the nose that lifts, straightens and, over months, stimulates collagen around itself. Each does one job well and the other job badly. Both results last about a year.
| Your nose | Better choice | Why |
|---|---|---|
| Low or flat bridge with little height to begin with | Filler first | A thread has nothing to anchor to on a flat bridge; see below |
| Bridge with some height that needs a straighter, sharper line | Threads, or threads plus a small volume of filler | Threads run the length of the dorsum and define the line; filler is not needed for height |
| Flat tip that needs to come forward | Filler | Threads rotate a tip; they cannot push it forward |
| Tip that droops and needs to rotate upward | Threads | Threads lift and rotate; filler cannot rotate a tip |
| Dorsal hump | Filler | Volume above and below the hump straightens the profile; a thread cannot hide a bump |
| Curved nose | Filler | The concave side is filled; a thread cannot move the bones |
| Wants a result that can be reversed | Filler (HA) | Hyaluronidase dissolves it; a thread is absorbed over about a year and cannot be removed early |
| Wants a longer-lasting line without a firm gel under the skin | Threads, or CaHA filler on the bridge | Collagen stimulated around a thread or CaHA outlasts an HA gel |
At the consultation I look at the profile from the side and the front and tell you which one, or which combination. Most first-time patients with a low bridge and a flat tip need filler, not threads, and I say so rather than sell both.
Tip elevation and nose tip projection need filler, not threads
Projection is how far the tip stands forward from the face. Rotation is the angle the tip points at. Threads do rotation: a thread anchored at the radix and run down to the tip pulls the tip upward and gives the nose a lifted look, but it cannot push the tip forward because it has nothing to push against.
Projection needs material placed at the tip and the columella, and that is filler. A small volume of HA at the tip pushes it forward; a small volume in the columella supports it from below so the projection holds. The change is visible from the side immediately and settles as the swelling resolves.
This is also the part of the nose with the least margin for error. The lateral nasal artery crosses the tip and the columellar artery runs beneath it, so the tip is treated with the smallest volumes, the slowest injection and HA only, never CaHA, so that it can be dissolved at once if it ever needs to be.
If a patient asks for threads to project a flat tip, the honest answer is that the thread will rotate it and leave it flat. Filler first; a thread later if rotation is wanted as well.
A very flat bridge needs filler before threads
A nose thread needs something to anchor to. It is placed along the dorsum from the radix toward the tip and relies on the existing bridge to hold it in position while collagen forms around it over the following months. On a nose that already has some height, that works: the thread sharpens and defines a line that is already there.
On a very flat bridge there is no line to anchor to. The thread sits on flat bone with no dorsum to follow, it cannot stimulate collagen into a shape that does not exist, and it cannot create height on its own. The result is a thread that does nothing visible, or one that shows through the skin.
So a very flat bridge is built with filler first. HA on the bone in the midline creates the height and the line. Once that height exists, and if a sharper, longer-lasting line is wanted, threads can be added on top six to twelve months later. Doing it the other way round wastes the thread.
This is the most common mistake I see in patients who come in after threads elsewhere with a bridge that is still flat: the thread was placed on a nose that needed filler.
Nose filler cost in Singapore
An HA nose filler is $1,200 per syringe and a CaHA nose filler is $1,400 per syringe, both before GST, with the review appointment included. One syringe treats most noses in a single session of about 20 minutes. The full breakdown, and what happens on the day, is on the nose fillers in Singapore page.
Common questions
Is nose filler safe?
Yes. The serious risk, filler entering a blood vessel, occurred in 0.27 per cent of nearly 10,000 published patients, and vision loss is a small fraction of that. It is kept that low by placing the filler in the midline on the bone, slowly, in 0.05 ml amounts, after aspirating, with hyaluronidase in the room and a hyperbaric oxygen chamber on site if it were ever needed.
How long does nose filler last?
Most studies report 8 to 12 months for HA, and in the nose it is often longer, because the nose barely moves. CaHA lasts longer still. Filler that has persisted for years can widen the bridge and should be assessed before any more is added.
Does nose filler migrate?
Not in the sense of moving to another part of the face. What happens is slower: HA placed in the nose can persist for years, and over that time it spreads sideways and widens the bridge. The fix is dissolving the old filler, not adding more.
Is nose filler permanent?
No. HA breaks down over one to two years, slower in the nose than elsewhere, and can be dissolved at any point. CaHA lasts longer because part of the result is your own collagen, but it also fades.
Does nose filler hurt?
Numbing cream is applied first and left on until the skin is numb. Most patients describe pressure rather than pain, and the tip is the most sensitive point.
HA or Radiesse for the nose, which is better?
HA for a first treatment and for the tip, because it can be dissolved. Radiesse, a CaHA filler, for the bridge of a patient who has had a good HA result and wants it to last longer. Neither is better in the abstract; reversibility decides.
Can nose filler go wrong?
The common problems are bruising, a small lump or a result that is slightly more or less than you wanted, all of which settle or are adjusted at the review. The rare serious problem is a blocked vessel, which is why the technique above is followed on every nose and why an HA filler, which can be dissolved on the spot, is the default.
Book a consultation with Dr Gerard Ee at The Clifford Clinic
Dr Gerard Ee consults and performs nose filler treatment at The Clifford Clinic, 50 Raffles Place, Singapore. Consultations are by appointment. Message the clinic on WhatsApp, or call 6532 2048.
References
Published studies cited on this page
- Song D, Wang X, Yu Z. Nonsurgical rhinoplasty: an updated systematic review of technique, outcomes, complications, and its treatments. Aesthetic Plast Surg. 2024;48(23):4902-4915. PMID 38862661
- Mortada H, Korb A, Mawdsley E, et al. The use of hyaluronic acid in non-surgical rhinoplasty: a systematic review of complications, clinical, and patient-reported outcomes. Aesthetic Plast Surg. 2024;48(2):194-209. PMID 37217605
- Beleznay K, Carruthers JDA, Humphrey S, Carruthers A, Jones D. Update on avoiding and treating blindness from fillers: a recent review of the world literature. Aesthet Surg J. 2019;39(6):662-674. PMID 30805636
- Pistone ES, Patel MM, Brondeel K, Nguyen P, Smith JM. Vision loss following nonsurgical rhinoplasty injections: systematic review of cases and management. Aesthet Surg J. 2026; online ahead of print. PMID 42660550
- Choi DY, Bae JH, Youn KH, et al. Topography of the dorsal nasal artery and its clinical implications for augmentation of the dorsum of the nose. J Cosmet Dermatol. 2018;17(4):637-642. PMID 30058278
- Moon HJ, Lee W, Do Kim H, Lee IH, Kim SW. Doppler ultrasonographic anatomy of the midline nasal dorsum. Aesthetic Plast Surg. 2021;45(3):1178-1183. PMID 33140196
- DeLorenzi C. Complications of injectable fillers, part 2: vascular complications. Aesthet Surg J. 2014;34(4):584-600. PMID 24692598
- Beneduce N, Botter C, Coiante E, Hersant B, Meningaud JP. The longevity of the nonsurgical rhinoplasty: a literature review. J Stomatol Oral Maxillofac Surg. 2023;124(1S):101319. PMID 36280110
- Lau E, Bohórquez JMC, Schelke L, et al. Persistent HA fillers and nasal broadening: role of ultrasound in managing “Avatar nose”. J Craniofac Surg. 2025; online ahead of print. PMID 40146331
- Stupak HD, Moulthrop TH, Wheatley P, Tauman AV, Johnson CM Jr. Calcium hydroxylapatite gel (Radiesse) injection for the correction of postrhinoplasty contour deficiencies and asymmetries. Arch Facial Plast Surg. 2007;9(2):130-136. PMID 17372068
- Lu Y, Hong WJ, Luo CE, Zhan WF, Luo SK. Vasculature of the nasal cartilage region related to filler injection. Aesthetic Plast Surg. 2022;46(5):2461-2468. PMID 35680708
This page is written from published research and from clinical experience in Singapore since 2012. It is for general education, not medical advice. Whether a treatment suits you, what it may achieve and what it may risk can only be established at a consultation. Dr Gerard Ee is the Medical Director of The Clifford Clinic, a private clinic in Singapore, and treatments discussed on this site are provided commercially.
