Who's tan is reay for summer. This peptide can help. Melanotan II Safety: Tanning Injection LIVV Natural Melanotan II Wikipedia What is Melanotan II the drug that the TGA urges consumers to avoid? What are 'melanotan' injections? Explaining the controversial tanning drug Dazed 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