Melanotan II (Tan Jabs): Why They're Not Worth The Risk Dangerous' tanning products promoted by influencers 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 How Melanotan Peptides Work to Enhance Skin Tone and Promote Tanning Age Well ATL 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 melanotan II C50H69N15O9 CID 92432 PubChem