Melanotan I 10 MG 99% Purity NuScience Peptides Melanotan II Research Peptide Alpha Carbon Labs 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 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 Melanotan 1 10MG Simple Peptide Melanotan 1 vs Melanotan 2