Doctors Say "Barbie Drug" Melanotan II Can Cause Brain Swelling Melanotan & Tanning Injections: Safe or Risky? Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) 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 Peptides are having a moment, but not all of them are harmless., One thats getting a lot of attention right now? Melanotan II., Its being used to achieve a tan from the inside, but what it Melanotan II Indications, Uses, and Side Effects_Chemicalbook