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] Changes of melanocytic lesions inducedby Melanotan injections and sun bed use ina teenage patient with FAMMM syndrome Semantic Scholar Melanotan Altmeyers Encyclopedia Department Dermatology How Melanotan Peptides Work to Enhance Skin Tone and Promote Tanning Age Well ATL Melanotan II (Tan Jabs): Why They're Not Worth The Risk