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 Buy Melanotan 2 99% Pure Peptide Works Melanotan II 10mg Pura Peptides MELANOTAN II PEPTIDE 10MG VIAL UMBRELLA Labs Buy Melanotan 2 US Warehouse Cosmetic Peptide 99% Purity 5mg 10mg Vials Lyophilized Powder Pharmaceutical Grade from SYS Pharma Corp. ECHEMI