Melanotan II: Tanning injections, nasal sprays harmful to health The Peptide Craze Ground Truths No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky Australia's Therapeutic Goods Administration is urging consumers to not use tanning products containing a synthetic peptide called 'Melanotan'. The drug can cause serious side affects, such a kidney failure, chest pains, acne, I was minutes from death after taking 'Barbie drug' everyone needs to be warned