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 Melanotan II (Tan Jabs): Why They're Not Worth The Risk Avoid nasal tanning sprays or nasal tanners entirely. These products promise an all over tan without sun exposure but they are unregulated, can be unsafe, and contain potentially risky substances like Melanotan 2. Melanotan II (Tan Jabs): Why They're Not Worth The Risk Melanotan II Nasal Tanning Spray Risks: Dizziness, Nausea, Skin Cancer Business Insider