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 causes the body to produce more melanin. But skin cancer experts have warned about the dangerous and life-threatening side effects associated. #nasaltanners #healthwarning #nasaltanningsprays #melanotan #skincancerawareness | STV News