Love Island generation' skin cancer fear BBC News Melanotan II Erectile Dysfunction Studies: What Early Research Shows and Practical Realities Melanotan & Tanning Injections: Safe or Risky? Is this injectable tanning drug safe to use? 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 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