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 Discover Melanotan 1 vs 2 Differences Peptide Works Woman with tanning 'obsession' claims people accuse her of trying to 'switch races' FOX 35 Orlando I accidentally undid years of skin work and didnt realize it until it was too late., At the beginning of November, I started taking melanotan 2 and honestly?, I loved it., My tan deepened