IMB issues warning over tanning injections at salons or bought on internet The Irish Times Don't risk using tanning products containing melanotan Therapeutic Goods Administration (TGA) Love Island generation' skin cancer fear BBC News Peptides are having a moment, but not all of them are harmless. One that's getting a lot of attention right now? Melanotan II. It's being used to achieve a tan from the 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