Oxyresveratrol , a dietary phenolic compound, has neuroprotective effect, as a potential nutritional candidate for protection against neurodegeneration in Parkinson disease; Oxyresveratrol has antioxidant activity, can reduce neuronal oxidative damage and protect hepatocytes against oxidative stress and mitochondrial dysfunction, which may be associated with activation of Nrf2, it also as an antibrowning agent for cloudy apple juices and fresh-cut apples. Oxyresveratrol exhibits a potent inhibitory effect on dopa oxidase activity of tyrosinase which catalyzes rate-limiting steps of melanin biosynthesis.Oxyresveratrol exhibits the inhibitory activity at the early and late phase of viral replication and inhibited the viral replication with pretreatment in one-step growth assay of HSV-1 and HSV-2.