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: Tanning injections, nasal sprays harmful to health Illegal tanning nasal sprays being pushed by social media influencers Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn