Melanotan II (Tan Jabs): Why They're Not Worth The Risk Warning issued over increased use of 'Barbie drug' Not all self tanners are created equal. Emerging ingredients like melanotan, melanoidins, and other agents raise safety and concerns, according to the Journal of Drugs in Dermatology. If you have questions about the Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn 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 Don't risk your health for a summer glow! Tanning nasal sprays are creeping onto the UK market, particularly on online and lack of regulation means they are a significant risk to your