Melanotan 2 Reviews, Clinical Trials, and Safety Reminder of serious health risks with 'Melanotan 2' self tan products Irish Pharmacist Health expert says Melanotan II darkens skin moles and can make melanoma hard to detect Herald Sun Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn 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