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 Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider Melanotan II (Tan Jabs): Why They're Not Worth The Risk What Is Melanotan, the So Called Barbie Peptide? PS Beauty Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News Been testing out MT 1 peptide (Melanotan I) lately and honestly this stuff works. Originally developed for skin protection and UV resistance, but most people know it now for boosting melanin and giving