HPRA Warns of Dangerous Melanotan 2 in Tanning Products Obelis Group 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? Melanotan II: Tanning injections, nasal sprays harmful to health 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 Pyoderma Gangrenosum Secondary to Melanotan Cureus