Cosmelan Peel Ingredients and Mechanism Cosmelan, a popular depigmentation peel used in the UK, contains a potent blend of active ingredients designed to address hyperpigmentation and uneven skin tone. These include hydroquinone, kojic acid, azelaic acid, and arbutin, each working synergistically to inhibit melanin production and lighten existing pigmentation. Active Ingredients Cosmelan’s unique formulation targets…