Pure Natural Free Sample Trans Resveratrol Polygonum Cuspidatum Giant Knotweed Extract Powder

• Customization: Available
• Certification: ISO, Kosher/Halal/cGMP/Organic
• Assay Method: HPLC
• Application Form: Lotion, Suppository, Paste, Tablet, Capsule
• Application: Food, Health Care Products, Medicine, Cosmectic/ Feed
• State: Powder
• Extract Source: Root
• Form: Powder
• Cultivation Method: Artificial Planting
• Extraction Type: Solvent Extraction
• Grade: Healthcare Grade
• Product Name: Giant Knotweed Extract
• Latin Name: Polygonum Cuspidatum
• Free Sample: 5-20g
• MOQ: 1kg
• Appearance: Fine Brown Yellow to White Powder
• Certificate: ISO, Halal, Kosher, cGMP
• Storage: Cool Dry Place
• Shelf Life: 2 Years
• Transport Package: Drum, Plastic Container, Vacuum Packed
• Specification: 10: 1; 10%, 20%, 50%, 98%Resveratrol
• Trademark: vigorous
• Origin: Hunan, China

Product Description

Product Description

Pure Natural Free Sample Trans Resveratrol Polygonum cuspidatum Giant Knotweed Extract Powder

Giant Knotweed Extract is derived from the roots of Reynoutria sachalinensis (syn. Fallopia sachalinensis), a perennial plant native to East Asia. Rich in bioactive compounds like resveratrol, emodin, and polydins, it is valued for its antioxidant, anti-inflammatory, and antimicrobial properties. The extract is commonly used in traditional medicine to support cardiovascular health, liver function, and immune response. In modern applications, it is incorporated into dietary supplements, skincare products (for anti-aging and UV protection), and agricultural bio-stimulants. Standardized extracts ensure high concentrations of active constituents, enhancing efficacy. Its versatility and natural origin make it popular in nutraceutical, cosmetic, and pharmaceutical industries.

 

Analysis Items	Specifications	Test Methods
Appearance & Color	Fine Brown Yellow to white powder	Visual
Odor & Taste	Characteristic	Organoleptic
Mesh Size	NLT 90% through 80 mesh	80 Mesh Screen
Method of Extraction	Water/Ethanol	/
Extract Solvent	Water/Ethanol	/
Moisture Content	NMT 5.0%	5g / 105ºC / 2hrs
Ash Content	NMT 5.0%	2g / 525ºC / 3hrs
Heavy Metals	NMT 10ppm	Atomic Absorption

 

Application of Giant Knotweed Extract

Giant Knotweed Extract, derived from Reynoutria sachalinensis, is widely utilized across multiple industries due to its rich bioactive compounds, including resveratrol, emodin, and polydatin. Below are its key applications:

1. Nutraceuticals & Dietary Supplements

• Antioxidant & Anti-Aging: Resveratrol helps combat oxidative stress, supporting cardiovascular health and longevity.

• Liver & Metabolic Support: Emodin promotes detoxification and healthy lipid metabolism.

• Immune Modulation: Polydatin enhances immune response and reduces inflammation.

2. Cosmetics & Skincare

• Anti-Aging Creams: Resveratrol boosts collagen synthesis, reducing wrinkles and UV-induced damage.

• Acne Treatment: Emodin's antimicrobial properties help manage acne-causing bacteria.

• Brightening Serums: The extract inhibits melanin production, aiding in skin lightening.

3. Pharmaceuticals

• Cardioprotective Effects: Improves blood circulation and reduces arterial stiffness.

• Antiviral & Antibacterial: Used in formulations targeting infections (e.g., herpes, Staphylococcus).

• Neuroprotection: Potential in Alzheimer's research due to anti-neuroinflammatory effects.

4. Agriculture & Plant Health

• Natural Pesticide: Acts as a biofungicide against plant pathogens like Phytophthora.

• Growth Enhancer: Stimulates root development and stress resistance in crops.

5. Functional Foods & Beverages

• Added to health drinks, energy bars, and fortified foods for antioxidant benefits.

Conclusion

Giant Knotweed Extract's versatility makes it valuable in health, beauty, medicine, and agriculture. Ongoing research continues to expand its applications, particularly in anti-inflammatory and metabolic health innovations.

 

Company Profile

 

Changsha Vigorous-Tech Co., Ltd.

--Founded in 2005

 

Why choose us?

* A Manufacturer of botanical extracts with our own factory more than 20 years---Offering you professional service
* Pure natural & high quality & competitive price &stable supply---Providing high quality goods
* Organic, ISO, Halal, Kosher certificated & Own lab and third party lab testing---Guaranteeing the goods quality
* Familiar with the market & fast quote and reply & rich experience ---Saving your time
* Free sample available--Knowing our goods better

Changsha Vigorous-tech Co., Ltd. manufactures products and manages the factory(Hunan Superfood Co., Ltd) adhering to strict GMP To ensure product quality, our R&D labs are equipped with a full range of testing equipment, such as high performance liquid chromatography (HPLC), thin layer chromatography (TLC), gas chromatography (GC), UV-visible spectrometer (UV). Meanwhile, we also own a professional quality assurance team to ensure that each batch of products undergoes rigorous testing and provide a unique certificate of analysis for each individual shipment.
Manufacturing process of Giant Knotweed Extract

Certifications

 

The following certificates available if you require:

ISO / ISO22000

COA / MSDS
Gluten Free / Allergen Free

GMO Free / Non Irradiation
Organic certificate/ Certificate of origin(Form/CO)/Kosher/Halal/CGMP
Phytosanitary certificate / Microbial certificate
Food certificate / Heavy metal statement

Residual solvent meet E.P. requirements. / Non-Animal Material

 

Packaging & Shipping

Our Storage and Packaging(Very tidy,No dusty):

How about sample policy?

If we have the sample in stock.we will provide free sample to you.If we don't have it in stock. then you should pay the sample fee.any way,the sample fee will pay back to you when you confirm the roder.

Packing Detail: Packed in paper-drums and two plastic-bags inside. Net Weight: 25kgs/drum.

Storage Situation:Stored in a cool and dry well-closed container, keep away from moisture and strong light / heat. 
Shelf Life:  two years under well Storage situation and stored away from direct sun light. 

Express(Send Free sample):
 

Which shipping way is available and how to track?

By sea to your nearest port

By air to your nearest airport 

By express (DHL,UPS,FEDEX,TNT,EMS)to your door

When ur order shipping out . we will provide u a tracking no. then u can know clearly the status of the goods 

Our Advantages

Pre-sales
1.High quality control
2.Free samples(5-20g)
3.Kosher, MSDS, Food certification, etc
Sales
1.Professional sales director
2.Excellent R&D back up
3.24 hours service
After-sales
1.Shipment tracking
2.Goods quality following
3.Periodically contacting

FAQ

Q:What about your standard delivery time?
A:Normally the delivery time is 3-15 days. If you need it in a hurry, we will make immediate delivery.
Q:Is there any discount?
A:Sure, Prices are closely related to the quantity. The more, the cheaper.
Q:Can you provide samples?
A:Yes, normally we can provide samples 5-20 g. You could purchase a small amount of product too.If you need it, please don't hesitate to contact us.
Q:Do you have guarantee on your products?
A:The product are 100% pure natural with high quality. We are sure that every batch comes with the unique COA. All extracts are tested in-house; random extracts are tested by authoritative analytical labs.
Q: What is your MOQ?
A: Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q: What's your payment terms?
A: You can pay to us via T/T Bank, Visa Card, Master Card, e-Checking, Paypal, Western Union.
Q:How to ship and delivery?
A:Transit could be DHL. For mass orders, it will be delivered by air or sea.