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. Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Dermoscopy Atlas Diagnosis Detail Melanotan injections are sold illegally and possibly unsafe Cancer Research UK Cancer News dermoscopy: A pigmented labial lesion Oral Malignant Melanoma Oral Cancer Foundation Information and Resources about Oral Head and Neck Cancer