Nasal sprays containing the 'Barbie Drug' melanotan are very, very dangerous and completely unregulated, according to leading dermatologist. Experts say there has been a surge in the use of the illegal tanning aid Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Tanning, fake tan and Melanotan Cancer Research UK Australians who use tanning products containing 'melanotan' are at risk of serious health problems. These products include nasal sprays and other injectable and ingestible tanning products, and are being illegally promoted and New tanning trend you should never try