You Should Avoid Using Nasal Tanning Sprays Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn 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 Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian Burn notice: Gen Z and the terrifying rise of extreme tanning Health & wellbeing The Guardian Nasal tanning sprays warning issued by Trading Standards