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 Eruptive naevi and darkening of preexisting naevi 24 h after a single mono dose injection of melanotan II Semantic Scholar Melanotan II: Tanning injections, nasal sprays harmful to health R3TA (GLP 3) 10mg Melanotan AUS Melanotan 2 (10 MG) Sigma Compounds Melanotan II Synthetic Tanning Drug Molecule #3 Canvas Print