Health warning over 'dangerous' self tan product after increase in ads A Current Affair: Tanning 'Barbie drug' a danger to users, experts say Melanotan II (Tan Jabs): Why They're Not Worth The Risk The sale of nasal tanning sprays continues to soar across the UK, despite being illegal and unregulated., They contain the chemical Melanotan II, an artificial hormone that enters the bloodstream and 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