为蓼科植物虎杖根，何首乌根；松科库页云杉树皮；桃金娘科桉树属等。主要来源于蓼科植物虎杖Polygonum cuspidatum Sieb. et Zucc.的干燥根茎和根。虎杖甙是其中一种天然活性成分,为白色针状结晶粉末。易溶于甲醇、乙醇、乙酸乙酯，微溶于水。虎杖甙，一种多酚的植物抗毒素，具有多种生理和药理作用，包括抗炎和抗氧化活性。 Polydatin is the glycoside of Resveratrol originally isolated from the Chinese herb Polygonum cuspidatum. The compound has been shown to inhibit platelet aggregation and elevate the ratios of LDL-C/HDL-C and TC/HDL-C. Myocardial cell, white blood cell, vascular smooth muscle cell, and endothelial cell studies report that Polydatin can inhibit ICAM-1 expression, elevate Ca2+, weaken white blood cell-endothelial cell adhesion, and activate KATP channels. Polydatin, a type of polyphenolic phytoalexin, has many physiological and pharmacological effects including anti-inflammatory and anti-oxidative activities.