The Tanning Drug What Patients Should Know 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 Afamelanotide tested as a new treatment for vitiligo Vitiligo Clinic Man warns against 'dangerous' tanning injections after turning so dark he 'looked like Madge from Benidorm' and now has the freckled skin of a 60 year old What is melanotan and why is it so dangerous?