Giant knotweed Extract
Giant knotweed Extract
Giant knotweed Extract
Giant knotweed Extract
Giant knotweed Extract

Giant knotweed extract, Latin name as Polygonum Cuspidatum Sieb, is extracted the dry stem and root of Polygonum cuspidatum. Produced in eastern China, central China, southern China and other places, it has the function of anti-oxidant, anti-atherosclerosis; it is helpful in treating coronary heart disease, ischemic heart disease and Hyperlipidemia.

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Powerful Natural Giant Knotweed Extract With Cancer Inhibitor

The main active ingredients is trans-resveratrol (3,5,4'-trihydroxy-trans-stilbene), which is a natural compound. It is a powerful antioxidant produced by some plants to protect them against environmental stresses. Antioxidants neutralize free radicals, which are believed to be the cause of aging. Japanese knotweed is the plant source with the highest resveratrol content.

Item Specification
Genus and Species Pohygonum cuspidatum Sieb .
Part of the Plant Root
Country of Origin China
Assay(Trans-resveratrol) >98.0%
Appearance Fine Powder
Color Off-white to light yellow
Solvent(s) Used Ethanol & Water
Melting point 253℃~255℃
Solubility Soluble in Alcohol
Particle Size (80 mesh) >98.0% pass 80mesh
Loss on drying <2.0%
Ash Content <1.0%
Solvent Residue Eur Pharm
Total Heavy Metals <10 ppm
As <2.0 ppm
Lead <2.0 ppm
Mercury <0.5 ppm

1.Functional food, drinks.
2.Health care products.
3.Resveratrol powder for pharmaceuticals.

1.Resveratrol antibacterial,antithrombotic,antiinflammatory and antianaphylaxis.
2.Resveratrol prevent cancer from happening and developing, have estrogen action, have obvious prophylaxis actions, especially tumor which depend on hormone.
3.Resveratrol antioxidation,delaying aging,preventing osteoporosis,acne(whelk) and dementia in the elderly.
4.Resveratrol lowering cholesterin and the blood viscosity, reducing the risk of arteriosclerosis, cardio-cerebrovascular disease and heart disease.
5.Resveratrol owning good efficacy for treatment of AIDS.

● Any inquiries will be replied with in 12 hours.
● Valued on quatity, supply & service.
● Strictly on selecting raw meterials.
● Reasonable & competitive price ,fast lead time.
● Flexible Payment Terms: L/C, T/T, DP, DA, OA

With ISO, FSSC, HALA, KOSHER, and Organic Certificate (NOP &ECO).
● First-class QA/QC and R&D assured by Dr. Gingko Zeng.
● Over 25-year experience in manufacturing and distributing Herbal extract to the international market.
● ISO,Organic,HACCP, Kosher, Halal certifications available.

Q: What do you produce?
A: We produce standardized herbal extract to ratio extract, such as Pesticide Free Ginseng Extract, Cocoa Polyphenols, Apple Phloridzin, Sweet Tea Extract, Resveratrol From Giant Knotweed Extract, Sorghum Extract, Dong Quai Extract, Milk Thistle Extract, Red Clover Extract, Echinacea Purpurea Extract, Magnolia Bark Extract etc


Q: What is your delivery?
A: Normally the delivery is 7-10 working days


Q: Do you have a guarantee on your products?
A: We guarantee the goods produced is same as the samples confirmed by you, and strictly tested every item comply with CHP, EP or USP before shipping.


Q: Can I have a sample ?
A: Sure, 20g-50g free sample is available for your testing.



If you have some problems about Powerful Natural Giant Knotweed Extract With Cancer Inhibitor, or want to know more details about Immunity Booster,Anti-Oxidant,Cardiovascular Health,Liver Health,Estrogen Balance,etc. Welcome to contact us!


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