Melanotan What It Is and Its Relation to Skin Cancer Tanning Injections EXPOSED! The Dangers No One Talks About Illegal tanning nasal spray not a 'harmless alternative' to sunbaking, says TGA ABC News 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 What is Melanotan II the drug that the TGA urges consumers to avoid?