Man warns against 'dangerous' tanning injections after turning so dark he 'looked like Madge from Benidorm' and now has the freckled skin of a 60 year old Burn notice: Gen Z and the terrifying rise of extreme tanning Health & wellbeing The Guardian Professional Removal of Hyperpigmentation My London Skin Clinic 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 Melanotan is trending again. As a dermatologist, I strongly need to tell you It's an unapproved injectable peptide, and we're seeing: nausea and flushing darkening of existing moles