Melanotan injections? Support or don't support? Glow Community 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 PDF) Increasing illegal use of Melanotan: The Barbie drug hype Background Melanotan injections are sold illegally and possibly unsafe Cancer Research UK Cancer News Melanotan peptide might seem like the cool thing to doit makes you look tan., But these unregulated injections come with real risks., They can cause unpredictable skin changes, including darkening of Melanotan & Tanning Injections: Safe or Risky?