Cosmelan Depigmentation Peel in Hounslow
Cosmelan is the world's number one professional depigmentation treatment, trusted by dermatologists and skin specialists globally. Developed by mesoestetic, it is the gold standard solution for melasma, post-inflammatory hyperpigmentation, sun damage, and stubborn dark spots. At Skin Health Practice in Hounslow, we offer the complete Cosmelan protocol — from the in-clinic mask application through to the essential home-care maintenance phase — giving you visible, lasting results that surface treatments alone cannot achieve.
Reviewed by Su Rixon · Aesthetic Clinician · Last reviewed April 2026
What is Cosmelan and How Does It Work?
Cosmelan is a professional-grade depigmentation system that works by targeting the root cause of hyperpigmentation rather than simply lightening the surface. It inhibits tyrosinase — the enzyme responsible for melanin (pigment) production — at multiple points in the melanogenesis pathway. This dual-action approach not only fades existing dark spots but actively prevents new pigmentation from forming. The treatment is delivered in two phases: Phase 1 is the in-clinic application, where a specially formulated Cosmelan mask is applied and left on the skin for a defined number of hours depending on your skin type. Phase 2 is the home-care maintenance protocol, using the Cosmelan 2 cream daily over several months to sustain results and prevent relapse. This combined approach is what sets Cosmelan apart from standalone peels or laser treatments that only address existing pigmentation without controlling future production.
What Conditions Does Cosmelan Treat?
Cosmelan is most commonly used for melasma — a chronic, hormonally driven form of hyperpigmentation that causes dark patches across the cheeks, forehead, upper lip, and chin. It is particularly common in women with darker skin tones and those with South Asian, Middle Eastern, Latin, or African heritage, and is often triggered or worsened by pregnancy, the contraceptive pill, and sun exposure. Cosmelan is also highly effective for post-inflammatory hyperpigmentation (PIH) — dark marks left behind after acne, eczema, or skin trauma; sun damage and age spots; uneven skin tone; and freckles. Because it works at a cellular level, Cosmelan can address pigmentation that has been resistant to other treatments including IPL, chemical peels, and topical brightening serums.
Is Cosmelan Safe for Darker Skin Tones?
Yes — Cosmelan is specifically formulated to be safe and effective across all Fitzpatrick skin types, including darker skin tones that are more prone to pigmentation conditions. Many treatments for hyperpigmentation — such as aggressive laser therapies or high-concentration acids — carry a significant risk of post-inflammatory hyperpigmentation in darker skin, making existing pigmentation worse rather than better. Cosmelan avoids this risk because it works biochemically rather than through heat or ablation. We see a large proportion of clients from South Asian, East Asian, Middle Eastern, and Black backgrounds at our Hounslow clinic and have extensive experience in tailoring the Cosmelan protocol for darker skin to maximise results while protecting the skin barrier.
What to Expect During Your Cosmelan Treatment
Your Cosmelan journey begins with a full skin consultation and assessment. Your practitioner will evaluate your skin type, the nature and depth of your pigmentation, and your medical history to confirm suitability. On treatment day, the skin is thoroughly cleansed and the Cosmelan mask is applied in-clinic. The mask is left on for several hours — the exact duration is tailored to your skin type — and then removed at home according to specific instructions. Your practitioner will provide you with the complete home-care kit, including Cosmelan 2 maintenance cream, SPF 50+ sunscreen, and a detailed aftercare protocol. In the first 7 to 10 days following the mask, the skin may appear flushed, feel tight, and undergo some flaking or peeling as the active ingredients work to resurface the skin. This is a normal part of the process. Pigmentation will begin to visibly lighten within 2 to 4 weeks, with full results developing over 2 to 3 months.
Aftercare and Maintaining Your Results
The success of Cosmelan depends as much on the home-care phase as the in-clinic treatment. Consistency with the Cosmelan 2 maintenance cream is essential for sustaining results and preventing pigmentation from returning. Sun protection is non-negotiable — SPF 50 must be applied every morning and reapplied during the day if you are outdoors. UV exposure is one of the primary triggers of melanin overproduction, so protecting your skin from sunlight is critical to preventing relapse. Avoid active skincare ingredients such as retinoids, AHAs, and BHAs during the initial recovery phase unless directed by your practitioner. We will provide a structured timeline for reintroducing your regular skincare routine. Follow-up appointments are included in your treatment to assess progress and adjust the maintenance protocol as needed.
Cosmelan vs Other Pigmentation Treatments
Many clients come to us having already tried multiple treatments for melasma or stubborn pigmentation without satisfactory results. Chemical peels can improve surface-level pigmentation but often fail to address the deeper melanin activity that drives melasma. IPL and laser treatments can be effective for some forms of pigmentation but carry a risk of worsening melasma and post-inflammatory hyperpigmentation in darker skin tones. Topical brightening products (vitamin C, niacinamide, kojic acid) can help maintain results but rarely produce significant improvement on their own for established melasma. Cosmelan's combination of potent depigmentation actives and tyrosinase inhibition makes it uniquely effective for the most resistant pigmentation cases. In clinical studies, Cosmelan achieved complete or near-complete elimination of melasma in 95% of patients, making it the highest-evidence treatment available outside of prescription medicine.
Why Choose Skin Health Practice for Cosmelan?
As an authorised mesoestetic clinic, Skin Health Practice uses authentic Cosmelan products sourced directly from mesoestetic — not imitations or diluted formulations sold online. Our practitioners are fully trained in the Cosmelan protocol and have treated a wide range of pigmentation types and skin tones. We are located in Hounslow, West London, and serve clients from Ealing, Southall, Hayes, Brentford, Chiswick, Richmond, and across the surrounding area. Your initial consultation is free and includes a skin analysis to determine whether Cosmelan is the right treatment for your pigmentation, or whether an alternative such as the Dermamelan protocol or a combination approach would serve you better.
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Why Choose This Treatment
Key Benefits
World's number one professional
World's number one professional depigmentation treatment — developed by mesoestetic
Clinically proven to eliminate
Clinically proven to eliminate melasma in 95% of cases
Safe for all skin
Safe for all skin tones including dark, Asian, and Indian skin
Targets the root cause
Targets the root cause of pigmentation — not just the surface
Two
Two-phase system: in-clinic mask plus home-care maintenance for lasting results
Treats melasma
Treats melasma, post-inflammatory hyperpigmentation, sun damage, and uneven skin tone
Authorised mesoestetic clinic
Authorised mesoestetic clinic — authentic products and trained practitioners
Frequently Asked Questions
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Reclaim Clear, Even-Toned Skin
If melasma or stubborn pigmentation has been affecting your confidence, Cosmelan could be the solution. Book your free consultation at Skin Health Practice in Hounslow and let our specialists create a personalised treatment plan for your skin.