What is Melanotan II the drug that the TGA urges consumers to avoid? Warning issued over increased use of 'Barbie drug' Dangerous' nasal tanning sprays linked to killer cancer as Brits issued warning 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 Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold