There are two peptides people talk about for tanning: Melanotan 1 and Melanotan 2. Melanotan 1 works slower and mainly targets the skin, leading to a more gradual and even increase in Skin Type 1 results : r Melanotan2 Melanotan 1 and Melanotan 2 are peptides that boost melanin to darken your skin without the sun. Melanotan 1 is FDA approved for rare light sensitivity conditions and gives a more gradual and even tan Melanotan 2 Guide for Deeper and Consistent Tanning Comparing Melanotan 1 and Melanotan 2 Peptides Core Peptides Discover Melanotan 1 vs 2 Differences Peptide Works