Polygonum Cuspidatum Root Extract Powder is extracted from the root of Polygonum Cuspidatum. Its active ingredient is resveratrol, a white powder. Resveratrol has a wide range of antioxidant properties, such as LDL cholesterol oxidation and lipid peroxidation. Resveratrol helps cardiovascular health and blood circulation, relieves pain, clears away heat and dampness, detoxifies and removes phlegm.