Melanotan 2 Nasal Tanning Spray 10mg UK PureMT2 I was minutes from death after taking 'Barbie drug' everyone needs to be warned Melanotan II (Tan Jabs): Why They're Not Worth The Risk 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 longer lasting than Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA)