Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 Melanotan & Tanning Injections: Safe or Risky? Health expert says Melanotan II darkens skin moles and can make melanoma hard to detect Herald Sun Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) Insights into Tanning Biology and Tanning Products JCAD The Journal of Clinical and Aesthetic Dermatology