Peels
5 min readChemical Peels for Melasma Without the PIH
Educational reading for licensed practitioners — not clinical or injection guidance.
Melasma is the concern most likely to punish an over-enthusiastic peel. The same melanocytes that produce the patchy pigment are primed to overreact to inflammation, so an aggressive acid can darken exactly what it was meant to lighten. The workable strategy is almost the opposite of intuition: go gentle, go slow, and treat the peel as one part of a longer pigment-control plan rather than the whole treatment.
Why melasma needs a light touch
Melasma is a chronic, relapsing condition driven by hormones, heat and UV exposure acting on hyperactive melanocytes. Any procedure that provokes significant inflammation risks post-inflammatory hyperpigmentation (PIH), and in the mixed and darker phototypes where melasma is most common, that risk is highest. Deep or medium-depth peels are therefore rarely the right first move. Superficial, low-irritation acids used in a series give steadier, safer results and are far easier to stop if the skin starts to react.
The acids that behave
- Mandelic acid is the workhorse. Its large molecule penetrates slowly and evenly, producing minimal irritation, which is exactly the profile melasma-prone skin needs. Mandelic Acid Peel FILORGA Light and the stronger Hyalax Mandelic Peel 40% allow gradual titration across a course.
- Salicylic acid (BHA) brings anti-inflammatory properties alongside its exfoliation, which helps keep the melanocyte response quiet. A beta-hydroxy option such as Dermastir BHA Peptide 20% suits oilier melasma patients.
- Low-strength glycolic can play a supporting role once tolerance is proven, but Glycolic Acid Peel FILORGA Time should be introduced cautiously and never as the opening move in reactive skin.
Combination pigment protocols also have a place: a targeted system such as Mesoestetic Dermamelan or a brightening-focused peel like FILORGA Bright Peel can be considered where a straightforward acid series is not enough, though these demand careful patient selection and aftercare.
Prime before you peel
Priming is what separates a good melasma outcome from a disappointing one. For two to four weeks before the first peel, settle the melanocytes with a tyrosinase-inhibiting routine — a lightening serum such as WiQo Lightening Serum and, where tolerated, a low-strength retinoid. Priming reduces the reactive pigment response, improves evenness, and helps the acid work on calmer skin.
Run it as a series, not a single hit
Serial superficial peels, spaced roughly every two to four weeks, outperform one strong treatment for melasma. The logic is cumulative refinement with minimal inflammation at each step. Between sessions:
- Reassess pigment and irritation before advancing strength or shortening intervals.
- Keep the pigment inhibitor going as maintenance.
- Stop and step down if you see lingering redness, which is the earliest warning of PIH.
Photoprotection is half the treatment
No melasma protocol survives poor sun habits. UV and visible light both drive the condition, so daily broad-spectrum SPF 50 — ideally tinted with iron oxides to screen visible light — is part of the prescription, not an afterthought. A high-protection, pigment-oriented sunscreen such as Mesoestetic Mesoprotech Melan 130 SPF 50+ fits this role. Without rigorous photoprotection, even a well-run peel series will relapse.
Set expectations honestly
Melasma is managed, not cured. Peels lighten and refine, but the tendency to repigment remains, and maintenance is lifelong. Framing this at the consultation protects both the patient's expectations and your reputation. Warn explicitly that heat, hormones and sun can trigger a rebound, and that stopping maintenance usually means the pigment returns.
The Takeaway
For melasma, restraint is the technique. Prime the skin, choose mandelic or salicylic over aggressive acids, run a gentle series rather than a single deep peel, and treat sun protection as a core part of the protocol. The goal is steady lightening with the inflammatory load kept low enough that the pigment never gets a reason to come back stronger.
See the chemical peels range to assemble a graded melasma protocol.