the product name is Resveratrol Extract

1.Polydatin is extracted from a traditional Chinese herbal medicine, Polygonum cuspidatum(Hu Zhang). 2.Polydatin also can be called resveratrol glycoside, piceid. 3.It is reported that polydatin obviously protects against thrombosis, has a special effect in shock treatment. 4.Polydatin is also a resources of resveratrol. Because if it hydrolyzed, the hydrolysate are resveratrol and glucose. The main active ingredient of Giant knotweed extract-Resveratrol is a naturally occurring phytoalexin produced by some higher plants in response to injury or fungal infection. Phytoalexins are chemical substances produced by plants as a defense against infection by pathogenic microorganisms, such as fungi. Alexin is from the Greek, meaning to ward off or to protect. Resveratrol may also have alexin-like activity for humans. Epidemiological, in vitro and animal studies suggest that a high resveretrol intake is associated with a reduced incidence of cardiovascular disease, and a reduced risk for cancer. url:http://www.hosunbio.com