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 Avoid nasal tanning sprays or nasal tanners entirely. These products can produce nasty side effects, such as nausea and vomiting, high blood pressure, respiratory issues, and even links to skin cancer. Nasal Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky 5 days progress. I've been taking 250mcg of Melanotan II and tanning for 10m outside daily. It's working Tighter in the hamstrings, glutes are still holding all of my fat so Melanotan II Safety: Tanning Injection LIVV Natural