Melanotan II Safety: Tanning Injection LIVV Natural 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 Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider L Carnitine 500 Dermoaroma Change in moles linked to use of unlicensed sun tan jab The BMJ