What is melanin? Cause and how it impacts skin, eye and hair color 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 Research Check: can a new drug really protect redheads from cancer? Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Melanotan II: Tanning injections, nasal sprays harmful to health