Emerging Threat: Melanotan, Repackaging, and Online Sales 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 II Skin Pigmentation & Libido Melanotan Tanning Injections The Low Down Lynton Lasers Melanotan 2 (10mg) Your Peptide Brand Melanotan II 10mg (MT 2) Peptide: Purity Research