Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Tanning peptides like melanotan are trending online, but theyre not approved, not regulated, and illegal to advertise in Australia. When products havent been properly tested, theres no way to know 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