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 Melanotan Tanning Injections The Low Down Lynton Lasers Melanotan II PRAMAH THE HAVEN Melanotan 1 For Sale (10mg) Core Peptides 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 The "Barbie Drug" Has a Dark Side