Chemical peels
Glycolic, salicylic, TCA and Jessner peels · 'peel season'
'Peel season' content peaks every northern autumn, and the US FDA has warned against high-strength peel acids bought online after reports of burns and scarring from home use.
Search interest: about 500 searches a month in Singapore for “chemical peel” (Ahrefs, October 2026).
The result is written in the depth and the priming, not in the brand on the bottle.
Reviewed against the Aesthetics International standard. Category: Procedures.
Do Chemical peels work?
Established. The result is written in the depth and the priming, not in the brand on the bottle. A systematic review of RCTs supports chemical peels for mild to moderate acne, with no single acid clearly superior.
- Verdict
- Established Long clinical track record. Results depend on selection and technique more than on the device.
- Evidence base
- 4 PubMed-indexed studies cited below, including systematic reviews.
- Suits
- Acne and post-acne marks, dullness, uneven tone and early photoageing; melasma as an adjunct to topicals; people who want a course of low-downtime treatments.
- Not for
- Active cold sores, recent isotretinoin for medium peels, unrealistic expectations for deep scars or laxity. A peel will not lift or fill.
- In Singapore
- In Singapore, medium-depth peels such as TCA and Jessner combinations are performed by doctors under the MOH Guidelines on Aesthetic Practices; low-strength cosmetic acid treatments are offered in beauty salons.
- Category
- Procedures · about 500 searches a month in Singapore for “chemical peel”
- Reviewed
- 1 October 2026 by Aesthetics International. Revised as evidence and regulation change.
What it is
A controlled chemical injury to the skin that removes layers at a chosen depth and triggers regeneration. Superficial peels (glycolic, lactic, mandelic, salicylic, low-strength TCA) work in the epidermis; medium peels (35% TCA, Jessner plus TCA) reach the upper dermis; deep phenol peels are rarely used in Asian skin.
How it works
Acid type, concentration, pH, number of coats and contact time decide depth, and depth decides both result and risk. Salicylic acid is oil-soluble and suits acne; glycolic and lactic acids suit texture and dullness; TCA and Jessner combinations reach fine lines, pigment and shallow scars. In Fitzpatrick III–V skin the limiting factor is post-inflammatory hyperpigmentation, so peels are kept superficial-to-medium and primed with a retinoid or lightening agent.
What the evidence says
A systematic review of RCTs supports chemical peels for mild to moderate acne, with no single acid clearly superior. Systematic reviews for melasma find superficial peels improve it as adjuncts, with glycolic acid most studied and rebound common. Reviews in skin of colour document good safety for superficial peels and a rising complication rate as depth increases. Comparative data against lasers are limited, and many trials are small and single-centre.
What people are saying
Paraphrased from public discussion on TikTok, Instagram, Reddit and in the press. Not testimonials, and not about any one clinic. Reported in: fda.gov, kins-clinic.com.
What the studies show
- systematic review
Chemical peels improved mild to moderate acne in randomised trials, with no consistent superiority of one peeling agent over another.
Chemical peels for acne vulgaris: a systematic review of randomised controlled trials — BMJ Open, 2018. PMID 29705755.
- systematic review
Superficial peels, particularly glycolic acid, improved melasma scores as adjuncts to topical therapy, with relapse and hyperpigmentation as recurring limitations.
Chemical Peels for Melasma: A Systematic Review — Dermatol Surg, 2024. PMID 38530985.
- systematic review
Peels as single agents improved melasma in dark-skinned patients but were generally not superior to topical regimens, with post-inflammatory pigmentation a risk.
Efficacy and tolerability of chemical peeling as a single agent for melasma in dark-skinned patients: A systematic review and meta-analysis of comparative trials — J Cosmet Dermatol, 2020. PMID 32947652.
- review
Superficial peels were effective and well tolerated in skin of colour, with complication risk rising with peel depth and inadequate priming.
Chemical Peels in Skin of Color: A Scoping Review of Safety, Efficacy, and Practice Patterns — Cureus, 2026. PMID 42306365.
Studies are selected for relevance and quality, not for agreement with the verdict; PubMed records are linked so the reader can check them.
Who it suits
Suits
Acne and post-acne marks, dullness, uneven tone and early photoageing; melasma as an adjunct to topicals; people who want a course of low-downtime treatments.
Not for
Active cold sores, recent isotretinoin for medium peels, unrealistic expectations for deep scars or laxity. A peel will not lift or fill.
Alternatives
The two reviewed treatments most often weighed against Chemical peels, on the same standard.
| Chemical peels | Niacinamide | Retinoids | |
|---|---|---|---|
| Verdict | Established | Established | Established |
| What it is | A controlled chemical injury to the skin that removes layers at a chosen depth and triggers regeneration. | Niacinamide is vitamin B3 in its amide form, a water-soluble ingredient used at two to ten per cent in serums and moisturisers. | Retinoids are vitamin A derivatives applied to the skin. |
| Evidence base | 4 PubMed-indexed studies cited below, including systematic reviews. | 3 PubMed-indexed studies cited below, including randomised trials. | 4 PubMed-indexed studies cited below, including systematic reviews, randomised trials. |
| Suits | Acne and post-acne marks, dullness, uneven tone and early photoageing; melasma as an adjunct to topicals; people who want a course of low-downtime treatments. | Almost everyone: oily, blotchy, acne-prone or barrier-compromised skin, and as a tolerable companion to retinoids and acids. | Adults with acne, fine lines, uneven texture or sun damage who will use it most nights for months; it is the base layer most clinic plans sit on. |
| In one line | The result is written in the depth and the priming, not in the brand on the bottle. | It will not change a face, but it makes everything else in the routine easier to tolerate, which is worth more than most hero ingredients deliver. | The mistake is not choosing the wrong retinoid; it is quitting in week three. |
Risks
Redness and peeling for days, post-inflammatory hyperpigmentation in darker skin, cold-sore reactivation, and burns or scarring when strong acids are used at home or without training.
In Singapore
In Singapore, medium-depth peels such as TCA and Jessner combinations are performed by doctors under the MOH Guidelines on Aesthetic Practices; low-strength cosmetic acid treatments are offered in beauty salons. High-strength peel acids sold online are unregulated and have caused burns.
“The result is written in the depth and the priming, not in the brand on the bottle.”
Vetted protocols on the same problem
Questions
Chemical peel or laser for pigmentation?
Will my skin visibly peel?
Can I do a peel at home?
Cite this review
Aesthetics International (2026). Chemical peels: does it work? Evidence, risks and verdict. https://aesthetics-international.org/treatments/chemical-peels/ (reviewed 1 October 2026).
Editorial, unpaid and independent of any manufacturer. Verdict: Established. 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.
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