Melanotan II Wikipedia Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn PDF) Increasing illegal use of Melanotan: The Barbie drug hype Background Melanotan II Wikipedia Eruptive naevi and darkening of preexisting naevi 24 h after a single mono dose injection of melanotan II Semantic Scholar 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