Polygonum Cuspidatum Extract Part used: Rhizome Extraction Type: Solvent Extraction CAS NO.:501-36-0 Specification: Resveratrol 1%--99% by HPLC Polydatin 1%--99% by HPLC Physcion 1% min. by HPLC Emodin 1% --60% by HPLC All KINGHERBS' 25%, 50%, 98%, 99% Trans-RESVERATROL are pure natural from Polygonum cuspidatum root, knotweed root. KINGHERBS could offer test report from American Analytical Chemical Laboratories Corp.,which assures you following specialities: pure white color low emodin low heavy metals nearly zero cis-resveratrol, cis-resveratrol-3-O-glucoside, trans-resveratrol-3-O-glucoside. Function: Anti-platelet aggregation Anti-viral and anti-bacteria Prevent cardiovascular disease Prevent bronchitis Anti-cancer;Anti-aging Anti-dementia;Anti-inflammatory Reduce cholesterol Loss weight Storage: Store in a cool and dry area. Don't freeze.Keep away from stong direct light. *Herbal extract * Softgel * Herbal oil *Natural color *Herbal powder *Vegetable & Fruit powder *Vitamin Characteristic: - We can also customize orders as customer's requirements and specifications. - KINGHERBS' is specialized in manufacturing and exporting different kinds of food industry related goods, such as Inulin (90% or 98%), Myricetin, Sea Buckthorn Oil, Green Coffee Bean Extract Total Chlorogenic Acids, Fenugreek Seed Extract Furostanol Saponins 50%,Artemsinin 99%, Natural Astaxanthin 1%-5% etc. - With the effective exporting system and prompt reaction, we ensure that we can transfer the shipping documents and deliver our cargoes on time. Welcome Visit us: Vitafoods Europe ( Geneva, Switherland): 5-7 May 2016, Booth No.: O75 CPhI & ICSE China ( Shanghai, China): 21-23 Jun. 2016, Booth No.: E3G66 SupplySide West (Las Vegas, US): 7-8 Oct. 2016, Booth No.: QQ167.