I accidentally undid years of skin work and didnt realize it until it was too late., At the beginning of November, I started taking melanotan 2 and honestly?, I loved it., My tan deepened 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 1 10MG Raw Amino Melanotan 1 (10 MG) Sigma Compounds MT1 (Melanotan 1): Structure and Emerging Research Applications