Emerging Threat: Melanotan, Repackaging, and Online Sales Melanotan II A Sun Kissed Look, and a Confident You. You Should Avoid Using Nasal Tanning Sprays Nasal tanning spray warning We've become aware of widespread availability of nasal sprays containing Melanotan II, mostly on line, but also through gyms and salons. The sprays are promoted as a safe way Melanotan is not a tan. It's an unregulated peptide with real risk. As a dermatologist, here's the reality: It has been linked to new and changing moles including cases of