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 Teen Boys and Young Men Are Injecting Peptides in Search of Perfection WSJ Burn notice: Gen Z and the terrifying rise of extreme tanning Health & wellbeing The Guardian Melanotan What It Is and Its Relation to Skin Cancer Professional Removal of Hyperpigmentation My London Skin Clinic