melanine biosynthesis and fruits enzymatic browning pathways. Chemical inhibitors of tyrosinase could have potential applications in cosmetics, medicine and food industry. In this study, we evaluated 6-Methoxy-3,4-dihydronaphthalenone chalcone-like derivatives as potent tyrosinase inhibitors and radical scavengers. Methods: A series of ten 2-arylidene-6-methoxy-3,4-dihydronaphthalenone derivatives as tyrosinase