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. You Should Avoid Using Nasal Tanning Sprays Nasal tanning sprays linked to skin cancer, trading standards officers warn Consumer affairs The Guardian What are 'melanotan' injections? Explaining the controversial tanning drug Dazed