Melanotan is trending again. As a dermatologist, I strongly need to tell you , Its an unapproved injectable peptide, and were seeing:, nausea and flushing, darkening of existing moles, Melanotan What It Is and Its Relation to Skin Cancer What is Melanotan II the drug that the TGA urges consumers to avoid? Targeting the central melanocortin system for the treatment of metabolic disorders Nature Reviews Endocrinology Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than