Here's the part nobody explains when they're selling you the "Barbie drug.", Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to Melanotan 2 For Sale (10mg) Core Peptides Melanotan 1 10mg Biochem Peptides Melanotan II CAS#: 121062 08 6 Stay Sun Kissed All Year Round with Melanotan 2 Melanotan is a tanning peptide that stimulates the production of melanin in the body to foster a deep, natural tan. This is the Buy Melanotan II Pre Mixed Peptide from Peptide Works