Yellow laser (577 nm)

Promising. Expect a few sessions, not a subscription. Clinical studies support 577 nm laser for erythematotelangiectatic rosacea, facial erythema and telangiectasia, including a 2019 series showing significant reduction in redness, and a 2022 study reporting reduced Demodex density in rosacea after treatment.

Verdict

Promising Plausible mechanism and early evidence. Reasonable to try with realistic expectations.

Evidence base

3 PubMed-indexed studies cited below (case series, clinical study); no systematic review or randomised trial on the claim itself.

Suits

Facial redness, flushing-prone skin, rosacea erythema and fine visible vessels, particularly in Asian skin where gentler vascular settings are preferred.

Not for

Deep or large vessels; melasma as a stand-alone treatment; people expecting tightening or anti-ageing; open-ended 'glow' packages.

In Singapore

577 nm lasers are HSA-registered devices used by doctors in Singapore clinics, often in redness and sensitive-skin programmes.

Category

Lasers · about 250 searches a month in Singapore for “yellow laser”

Reviewed

6 October 2026 by Aesthetics International. Revised as evidence and regulation change.

• Praisecalmer, less red skin after a few sessions, with little downtime.
• Complaintpackages of ten or more sessions, and 'glow' results that faded quickly.
• Common questionyellow laser or pulsed dye laser for redness.
• Misconceptionthat yellow laser is a general rejuvenation treatment — its target is vessels.

Paraphrased from public discussion on TikTok, Instagram, Reddit and in the press. Not testimonials, and not about any one clinic. Reported in: reddit.com, reddit.com.

1. case series

   577-nm laser significantly reduced erythema and telangiectasia in rosacea and facial redness, with transient side effects only.

   Treatment of erythematotelangiectatic rosacea, facial erythema, and facial telangiectasia with a 577-nm pro-yellow laser: a case series. — Lasers Med Sci, 2019. PMID 30097757.

2. clinical study

   Treatment reduced Demodex density alongside clinical improvement in rosacea.

   The effect of 577-nm pro-yellow laser on demodex density in patients with rosacea. — J Cosmet Dermatol, 2022. PMID 33742514.

3. clinical study

   The 577-nm laser cleared or lightened pigmented epidermal lesions with a low rate of post-inflammatory hyperpigmentation.

   Efficacy and Safety of 577-nm Yellow Laser in the Treatment of Pigmented Epidermal Lesions. — Lasers Surg Med, 2024. PMID 38890816.

Studies are selected for relevance and quality, not for agreement with the verdict; PubMed records are linked so the reader can check them.

The two reviewed treatments most often weighed against Yellow laser (577 nm), on the same standard.

577 nm lasers are HSA-registered devices used by doctors in Singapore clinics, often in redness and sensitive-skin programmes. Pulsed dye laser is the main alternative for vascular redness.

Aesthetics International (2026). Yellow laser (577 nm): does it work? Evidence, risks and verdict. https://aesthetics-international.org/treatments/yellow-laser-577/ (reviewed 6 October 2026).

Editorial, unpaid and independent of any manufacturer. Verdict: Promising. See what works and what doesn't across all 153 reviews. Spotted an error or a newer study? Suggest a correction — changes are logged on the corrections page. Terms are defined in the glossary.