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 Dangerous 'Barbie drug' Melanotan II sparks crackdown on social media influencers ABC News Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian Dangerous' tanning products promoted by influencers