Melanotan Tanning Peptides: Safe Use, Side Effects & How It Works Scientifically Melanotan I vs II Which Tanning Peptide Is Safer and More Effective CDMO for Pharm & Bio Kilo Biotechnology Evolve Tanning Melanotan 2 Injection Kit, Melanotan 2 Nasal Spray, Melanotan 2 Australia 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