Short Description Giant Knotweed Extract polydatin is the glycoside of resveratrol  isolated from the Chinese herb Polygonum cuspidatum.Polydatin is an effective candidate drug for the protection of photo-inflammation. Polydatin exhibitstherapeutic potential for vascular dementia, most likely due to its anti-oxidant activity and the directprotection of neurons.Polygonum is one of the plants of polygonaceae. It is native to east Asia and widely distributed in China. Knotweed is used in traditional Chinese and Japanese medicine to treat a variety of ailments, including fungal infections, skin inflammation, cardiovascular disease and liver disease. Resveratrol and emodin are the main functional components of polygonum cuspidatum. Studies have shown that resveratrol and emodin exhibit a wide range of antioxidant properties, such as LDL cholesterol oxidation and lipid peroxidation. Resveratrol has also been shown to contribute to cardiovascular health and blood circulation, relieve pain, clear away heat, damp, poison and phlegm. Other ingredients including dananone, emodin methyl ether and rhein have anti-inflammatory, arthritic and antimicrobial activities. Product Description Product Name: Giant knotweed extract Latin Name: Polygonum Cuspidatum Category: Plant Extracts Effective components: Resveratrol Product specification: 50%, 98% Analysis: HPLC Quality Control : In House Formulate: C14H12O3 Molecular weight: 228.25 CAS No: 501-36-0 Appearance: Off-white fine powder/off-white granule with characteristic odor. Identification: Passes all criteria tests Storage: keep in cool and dry place, well-closed, away from moisture or direct sunlight. Volume Savings: Sufficient material supply and stable supply channel of raw material in north China. Certificate Of Analysis Product name Giant knotweed extract Botanical Source Polygonum cuspidatum. Solvents Residue Water&Ethanol Part Used Root&Stam ITEMS SPECIFICATION METHOD TEST RESULT Physical&Chemical Data Color Off-White Organoleptic Qualified Ordour Characteristic Organoleptic Qualified Appearance Fine Powder Organoleptic Qualified Analytical Quality Identification Identical to R.S. sample HPTLC Identical Assay(L-5-HTP) ≥98.0% HPLC 98.63% Loss on Drying 5.0% Max. Eur.Ph.7.0 [2.5.12] 3.21% Total Ash 5.0% Max. Eur.Ph.7.0 [2.4.16] 3.62% Sieve 100% pass 80 mesh USP36<786> Conform Loose Density 20~60 g/100ml Eur.Ph.7.0 [2.9.34] 53.38 g/100ml Tap Density 30~80 g/100ml Eur.Ph.7.0 [2.9.34] 72.38 g/100ml Solvents Residue Meet Eur.Ph.7.0 <5.4> Eur.Ph.7.0 <2.4.24> Qualified Pesticides Residue Meet USP Requirements USP36 <561> Qualified Heavy Metals Total Heavy Metals 10ppm Max. Eur.Ph.7.0 <2.2.58> ICP-MS 1.388g/kg Lead (Pb) 3.0ppm Max. Eur.Ph.7.0 <2.2.58> ICP-MS 0.062g/kg Arsenic (As) 2.0ppm Max. Eur.Ph.7.0 <2.2.58> ICP-MS 0.005g/kg Cadmium(Cd) 1.0ppm Max. Eur.Ph.7.0 <2.2.58> ICP-MS 0.005g/kg Mercury (Hg) 0.5ppm Max. Eur.Ph.7.0 <2.2.58> ICP-MS 0.025g/kg Microbe Tests Total Plate Count NMT 1000cfu/g USP  <2021> Qualified Total Yeast & Mold NMT 100cfu/g USP  <2021> Qualified E.Coli Negative USP  <2021> Negative Salmonella Negative USP  <2021> Negative Packing&Storage Packed in paper-drums and two plastic-bags inside. N.W: 25kgs Store in a well-closed container away from moisture, light, oxygen. Shelf life 24 months under the conditions above and in its original packaging. Product Function Resveratrol weight loss, Resveratrol is naturally occurring phytoalexin produced by some higher plants in response to injury or fungal in fection. Phytoalexins are chemical substances produced by plants as a defense against in faction by pathogenic microorganisms,Natural Resveratrol may also have alexin-like activity for humans. Epidemiological, in vitro and animal studies suggest that a high resveratrol  intake is associated with a reduced incidence of cardiovascular disease, and a reduced  risk for cancer. Cardiovascular – Resveratrol decreases the viscosity of the blood and acts as anticoagulant to thin blood, effective in treating cardiovascular disease by reducing  thrombosis and embolisms that can block arteries and lead to myocardial and  cerebral infarctions. Cancer – Resveratrol has been found to reduce tumor volume, tumor weight Weight Loss – resveratrol is the most potent natural compound mimicking the positive effect of calorie restriction. Antioxidant resveratrol prevent aging by protecting cellular free-radical damage. kill Lyme bacteria. Antimicrobial – To inhibit the growth of staph,salmonella the dosage. inhibit the growth of influ. Gmo statement We hereby declare that, to the best of our knowledge, this product was not produced from or with GMO plant material. By products & impurities statement We hereby declare that, to the best of our knowledge, this product does not contain and was not manufactured with any of the following substances: Parabens Phthalates Volatile Organic Compounds (VOC) Solvents and Residual Solvents Gluten free statement We hereby declare that, to the best of our knowledge, this product is gluten-free and was not manufactured with any ingredients containing gluten. (Bse)/ (Tse) Statement We hereby confirm that, to the best of our knowledge, this product is free of BSE/TSE. Cruelty-free statement We hereby declare that, to the best of our knowledge, this product has not been tested on animals. Kosher statement We hereby confirm that this product has been certified to Kosher standards. Vegan Statement We hereby confirm that this product has been certified to Vegan standards. Food Allergen Information Component Present in the product Peanuts (and/or derivatives,) e.g., protein oil No Tree Nuts (and/or derivatives) No Seeds (Mustard, Sesame) (and/or derivatives) No Wheat, Barley, Rye, Oats, Spelt, Kamut or their hybrids No Gluten No Soybeans (and/or derivatives) No Dairy (including lactose) or Eggs No Fish or their products No Shellfish or their products No Celery (and/or derivatives) No Lupin (and/or derivatives) No Sulphites (and derivatives) (added or > 10 ppm) No