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 The Peptide Craze Ground Truths Alpha melanocyte stimulating hormone ( MSH): biology, clinical relevance and implication in melanoma Journal of Translational Medicine Springer Nature Link Australians who use tanning products containing 'melanotan' are at risk of serious health problems. These products include nasal sprays and other injectable and ingestible tanning products, and are being illegally promoted and Cancer Association of South Africa (CANSA) Fact Sheet and Position Statement on Sunless Tanning