Melanotan 1 vs Melanotan 2 Can You Take Too Much Melanotan? A Z Guide 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 Benefits of Melanotan II (MT 2) Honest Peptide Watch Me Tan with Melanotan 2 MT2 Year 2 Results, Side Effects, & My Full Protocol