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 PDF) Effects of a Superpotent Melanotropic Peptide in Combination With Solar UV Radiation on Tanning of the Skin in Human Volunteers What is Melanotan II the drug that the TGA urges consumers to avoid? Melanotan II (Tan Jabs): Why They're Not Worth The Risk Tanning Injections EXPOSED! The Dangers No One Talks About