Using Melanotan to Prevent Polymorphous Light Eruption aka SUN POISONING Natural Kaos Buy Melanotan 2 Tanning Nasal Spray (Double Kit) Turbo Tan An FDA Reversal on Peptides Could Open the Market to Unsafe Drugs ProPublica 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