Change in moles linked to use of unlicensed sun tan jab The BMJ No, you don't need the 'Barbie drug' to tan, whatever TikTok says. Here's why melanotan II is so risky 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 Dying for a Tan: The Rise in Sunbed Use with Melanotan @caitrionaryandermatology was featured in the @independent.ie today , Sunbed usage remains popular among young people in Ireland despite Clinically important side effects of Melanotan II and placebo Download Table