Melanotan 1 10mg (CAS 75921-69-6) is a high-purity melanogenic peptide API, featuring ≥98% purity (HPLC-verified) and a defined 21-amino-acid structure (molecular weight: ~2602 Da). As a synthetic analog of α-MSH, it binds to melanocortin 1 receptors (MC1R) on melanocytes, efficiently stimulating melanin production and skin pigmentation regulation.