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 Melanotan 2 LeadWest Medical MELANOTAN 2 10MG Beverly Hills Rejuvenation Center Melanotan What It Is and Its Relation to Skin Cancer Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn