Maintaining Tan with Melanotan 1: Dosage, Results, and Differences from Melanotan 2 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 How Melanotan Peptides Work to Enhance Skin Tone and Promote Tanning Age Well ATL Understanding Melanotan 1 Peptide: Benefits, Risks, And Insights