Does Light Therapy Work for Acne? What Blue Light, Red Light, PDT and IPL Can Do

By |2026-08-30T11:18:26+08:00November 15th, 2018|

Written by Dr Gerard Ee, MBBS (UK), MRCS (Edinburgh), DP Dermatology (Cardiff). Last medically reviewed and updated: September 2026. Light therapy can improve mild-to-moderate acne, particularly when red and blue LED devices are used consistently, but it rarely replaces a complete acne treatment plan. A 2025 meta-analysis of six randomised trials found short-term improvements in inflammatory and non-inflammatory lesions with

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