Melanotan II Wikipedia View of Association of tanning injection with hypercortisolism, hyperglycaemia and ketosis in type 1 diabetes mellitus British Journal of Diabetes 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 Wikipedia No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky A new viral beauty habit that could have "catastrophic" long term consequences.