Nasal tanners claim to work by using Melanotan II, a chemical that darkens skin pigmentation. It is illegal to sell medicinal products containing Melanotan II in the UK but since the tanners are sold Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Illegal tanning nasal spray not a 'harmless alternative' to sunbaking, says TGA ABC News Medical & Clinical Research Thinking about that tanning nasal spray? Don't. Unregulated nasal tanning sprays are being sold online, claiming to give you a sun kissed glow. But they're risky and illegal. According to the Chartered Trading