2'-Hydroxygenistein has antifungal activity, dimerization of it causes a remarkable increase of antifungal activity. It shows significant concentration-dependent inhibitory effects on the release of beta-glucuronidase and lysozyme from rat neutrophils in response to formyl-Met-Leu-Phe/cytochalasin B. 2'-Hydroxygenistein of genistein can enhance its antioxidant activity and cell cytotoxicity in MCF-7 human breast cancer cells.