What is Melanotan II the drug that the TGA urges consumers to avoid? Dermatologist Explains: Melanotan 2, SPF Oils, and More! You Should Avoid Using Nasal Tanning Sprays 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 What are the recent findings on the safety and efficacy of melanotan for therapeutic and cosmetic use?