Melanotan and the Posterior Reversible Encephalopathy Syndrome Annals of Internal Medicine Melanotan vs. Astaxanthin for Glowing Skin Viral tanning 'Barbie drug' linked to cancer, experts warn 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 longer lasting than Figure 4 from Changes of melanocytic lesions inducedby Melanotan injections and sun bed use ina teenage patient with FAMMM syndrome Semantic Scholar Melanotan II Safety: Tanning Injection LIVV Natural