IMB issues warning over tanning injections at salons or bought on internet The Irish Times Melanotan injections are sold illegally and possibly unsafe Cancer Research UK Cancer News 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 Glowup shortcuts are trending again, but doctors say the Barbie drug comes with real medical red flags. Unregulated, unapproved, and could have serious sideeffects is any tan worth that risk?, Melanotan II (MT II) Peptide Therapy Beverly Hills