Evolve Tanning Melanotan 2 Injection Kit, Melanotan 2 Nasal Spray, Melanotan 2 Australia Before and after Melanotan tanning therapy, sunless tanning results When it comes to tanning peptides, there are two main options: Melanotan 1 and Melanotan 2. Melanotan 1, also called afamelanotide, is FDA approved for a rare light sensitivity condition and works Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn