Eruptive naevi and darkening of preexisting naevi 24 h after a single mono dose injection of melanotan II Semantic Scholar PDF) Increasing illegal use of Melanotan: The Barbie drug hype Background 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 reverses memory impairment induced by a short term HF diet ScienceDirect