No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Can You Use Melanotan Long Term? Teen Boys and Young Men Are Injecting Peptides in Search of Perfection WSJ Melanotanassociated melanoma Paurobally 2011 British Journal of Dermatology Wiley Online Library 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 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