What is the 'Barbie drug' and should authorities be worried? ABC 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 SYNTHETIC MELANOTROPIC PEPTIDE INITIATES ERECTIONS IN MEN WITH PSYCHOGENIC ERECTILE DYSFUNCTION: DOUBLE BLIND, PLACEBO CONTROLLED CROSSOVER STUDY Journal of Urology 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 (Tan Jabs): Why They're Not Worth The Risk IMB issues warning over tanning injections at salons or bought on internet The Irish Times