Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider I was addicted to illegal nasal tanning sprays I loved the confidence my 'glow' gave me, but it had scary side effects No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky 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