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 Australia's health regulator has issued an urgent alert against Melanotan a dangerous tanning product. "This stuff that people are getting is unlicensedand off the black market." Dr Greg Goodman Melanotan What It Is and Its Relation to Skin Cancer Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider