Product name: Polygonum Cuspidatum Root Extract Latin name: Reynoutria japonica Houtt Source: Polygonum cuspidatum root Active ingredient: Resveratrol Appearance: Brown yellow powder to white powder Specification:50%98%Resveratrol Part used: Root Test method: HPLC Function 1.Effect on cardiovascular system; 2.Anti-cancer; 3.Nourish and protect liver; 4.Impact on the metabolism of osseous issue; 5.Anti-oxidant and quench free-radicals; 6.Anti-bacterial and anti-fungal.