Melanotan 2 Tanning injections If you've never heard of Me Flickr Cancer Association of South Africa (CANSA) Fact Sheet and Position Statement on Sunless Tanning Top 3 ways to use the melanotan II peptide., #peptide #tanning Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and longer lasting than Melanotan II Wikipedia