The Risks of Fast Tanning 'Barbie Drug' Explained Ever Clinic Experts warn that using Melanotan II, a nasal spray tan, is not as harmless as it first appears, urging Aussies striving to be beautifully bronzed to stick to fake tan., , #spraytan #melanotan Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than IMB issues warning over tanning injections at salons or bought on internet The Irish Times Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian Melanotan (MT) II Melanocortin Receptor TargetMol