Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of Australians who use tanning products containing 'melanotan' are at risk of serious health problems. These products include nasal sprays and other injectable and ingestible tanning products, and are being illegally promoted and The Dangers of Melanot*n II Explained