Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Nasal Tanning Sprays: Illuminating the Risks of a Popular TikTok Trend MDedge You Should Avoid Using Nasal Tanning Sprays Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and View of Association of tanning injection with hypercortisolism, hyperglycaemia and ketosis in type 1 diabetes mellitus British Journal of Diabetes 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.