Patient One MediNutritionals V TrustScore 8.6 10 SuppCo Melanotan II is the product that's been dubbed the "Barbie drug" on social media, and promises to give users a tan without the sun but it can have serious side effects including, in rare cases, Melanotan II in Santa Barbara, CA Eternity Health Partners 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 A Current Affair: Tanning 'Barbie drug' a danger to users, experts say