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 Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Thinking about that tanning nasal spray? Don't. Unregulated nasal tanning sprays are being sold online, claiming to give you a sun kissed glow. But they're risky and illegal. According to the Chartered Trading FDA Fast Facts Dangerous' tanning products promoted by influencers Cancer Association of South Africa (CANSA) Fact Sheet and Position Statement on Sunless Tanning