Polygonum Cuspidatum Extract Resveratrol Powder

Best Polygonum Cuspidatum Extract Resveratrol Supplier

Resveratrol is a highly sought-after natural polyphenol compound that has gained significant attention in the nutraceutical, pharmaceutical, and cosmetic industries due to its remarkable antioxidant, anti-inflammatory, and anti-aging properties. At KINTAI, we specialize in producing 98%resveratrol extracted through an optimized process from Polygonum cuspidatum, one of nature's richest botanical sources of this valuable compound.

Unlike lower-quality plant sources, our Resveratrol is derived using a proprietary extraction technology that preserves the full spectrum of bioactive benefits while achieving exceptional purity levels of 98% or higher. This makes our resveratrol ideal for demanding applications in dietary supplements, anti-aging skincare formulations, and clinical research where potency and consistency are paramount.Feel free to contact us at info@kintaibio.com.​​​​​​​

Polygonum Cuspidatum Extract Resveratrol Specifications

KINTAI Resveratrol Plant Sources

Polygonum cuspidatum is a perennial plant belonging to the Polygonaceae family, native to East Asia, and now naturalized in many parts of the world. Its rhizome is stout, hollow, and segmented, and grows rapidly. In traditional Chinese medicine, the root of Polygonum cuspidatum is often used to clear heat and detoxify, promote blood circulation, and relieve pain. Modern research mainly focuses on the exceptionally high resveratrol content in its rhizome, making it one of the most important plant raw materials for the commercial extraction of this component, widely used in health supplements and skincare products.

The foundation of our superior resveratrol lies in its natural precursor, polydatin, a glycosylated form of resveratrol that serves as nature's storage mechanism in Polygonum cuspidatum roots. Polydatin offers several distinct advantages - its glycoside structure provides enhanced stability during extraction and greater bioavailability upon metabolic conversion in the human body.

 Our advanced bioconversion process utilizes enzymatic hydrolysis to carefully transform polydatin into highly pure trans-resveratrol, the most biologically active form. What truly sets KINTAI apart is our complete vertical integration - from sustainable cultivation partnerships with  Polygonum cuspidatum farms, through extraction facilities employing green chemistry principles, to rigorous final product testing in our ISO accredited laboratories. Every batch is accompanied by comprehensive analytical documentation including HPLC purity profiles, heavy metal screening, and microbiological testing to ensure compliance with international pharmacopeia standards. \

When you choose to buy resveratrol from KINTAI, you're not just purchasing an ingredient - you're investing in a scientifically validated, fully traceable nutraceutical solution backed by our commitment to quality, innovation, and regulatory excellence across global markets.

Interested？ Contact us to get free sample>>>

Flow chart of Polygonum Cuspidatum Extract

1. Raw Material Selection and Pretreatment

High-quality Polygonum cuspidatum roots with a resveratrol content of no less than 5% are carefully selected. After thorough washing to remove impurities, they are dried at low temperature and pulverized to 60-80 mesh, preparing for efficient extraction.

2. Supercritical CO₂ Green Extraction

Advanced supercritical CO₂ extraction technology is used, with extraction conducted under mild conditions of 25-35 MPa pressure and 40-50℃. No organic solvent residue remains throughout the process, ensuring the purity and safety of the extract.

3. Multi-stage Purification and Refining

The extract is selectively purified by adsorption using macroporous resin (AB-8/HPD-100), and then refined through low-temperature crystallization or molecular distillation to ensure that the purity of resveratrol (mainly in the trans configuration) in the final product is consistently above 98%.

4. Standardized Quality Control and Packaging

The product is spray-dried into micron-sized powder. Each batch undergoes rigorous HPLC testing to determine the trans-resveratrol content, and heavy metal and microbial indicators are ensured to meet EP/USP international standards. It is packaged in aluminum foil bags filled with nitrogen. The outer packaging can be customized. The standard size is 25kg/drum. It should be stored in a cool, dry environment away from light.

Polygonum Cuspidatum Extract Resveratrol Powder Benefits

1. Antioxidant Effect

This is the most basic and crucial function of resveratrol from Polygonum cuspidatum. It can directly and effectively neutralize free radicals in the body, reducing oxidative stress damage to cells and DNA. More importantly, it can inhibit the production of various pro-inflammatory factors at the molecular level by regulating signaling pathways such as NF-κB, thereby combating systemic chronic low-grade inflammation. This dual mechanism of "antioxidant" and "anti-inflammatory" constitutes the fundamental basis for its prevention of cardiovascular disease, delaying aging, and resisting chronic diseases.

2. Cardiovascular Protection

Numerous studies have shown that resveratrol from Polygonum cuspidatum has multiple benefits for the cardiovascular system. It can improve vascular endothelial function, promote the release of nitric oxide, help vasodilation, and maintain healthy blood pressure; at the same time, it can inhibit the oxidation of low-density lipoprotein ("bad cholesterol"), slow down the formation of atherosclerotic plaques, and has anti-platelet aggregation properties, thus supporting vascular health in multiple ways and reducing the risk of related diseases.

3. Metabolic Regulation

Resveratrol from Polygonum cuspidatum is a well-known SIRT1 protein activator. Activating this pathway can mimic the positive effects of calorie restriction, leading to a series of metabolic improvements, including: enhanced insulin sensitivity, aiding in glycemic regulation; and improved lipid metabolism, potentially benefiting non-alcoholic fatty liver disease. These effects, along with its ability to protect cells from age-related damage, demonstrate its significant scientific value and promise in promoting healthy aging and delaying age-related functional decline.

Cuspidatum Extract Resveratrol Powder Dosage

Side Effects of Resveratrol

While resveratrol is generally safe for most people at standard doses, there are some potential side effects and risks that require attention. The most common are gastrointestinal reactions such as diarrhea, abdominal cramps, and nausea, especially at higher doses. Because it may have weak estrogen-like activity, it should be used with caution in individuals theoretically at risk of hormone sensitivity (e.g., patients with breast cancer or endometriosis).

The most critical concern is drug interactions: resveratrol may inhibit key drug-metabolizing enzymes in the liver (such as CYP3A4), thereby affecting the blood concentrations of many prescription drugs, particularly potentially enhancing the effects of anticoagulants (such as warfarin), leading to an increased risk of bleeding, or interfering with the metabolism of certain statins and calcium channel blockers. Therefore, individuals currently taking any medications, those with specific medical conditions, and pregnant or breastfeeding women must consult a doctor before use.

Why Choose Healthkintai^® to Buy Resveratrol Powder?

Healthkintai^® strictly adheres to pharmaceutical-grade production process standards, ensuring that the purity of each batch of resveratrol powder reaches over 98%. Our quality control team utilizes advanced testing equipment such as high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS) to implement strict monitoring at every stage of production, from raw material procurement to finished product release, committed to providing customers with high-purity products that meet laboratory standards.

FAQ

Q1:Is Japanese knotweed the same as resveratrol?

No. This is a common point of confusion. Japanese knotweed (scientific name: Reynoutria japonica) is a plant. Resveratrol is a specific chemical compound, a type of polyphenol, that is found within that plant (primarily in its roots).Think of it this way: Japanese knotweed is the source, and resveratrol is the active ingredient extracted from it. The plant also contains other compounds. Resveratrol can also be sourced from grapes or produced synthetically, but Japanese knotweed is one of its richest natural reservoirs.

Q2:Does resveratrol burn belly fat?

A2:While some animal studies and small-scale human trials suggest it may aid metabolism—such as by improving insulin sensitivity, reducing inflammation, and activating certain proteins related to fat metabolism—these effects are modest and not consistently replicated in humans.

Significant, targeted reduction of belly fat requires a sustained calorie deficit achieved through a balanced diet and regular exercise. Resveratrol could potentially be a minor supportive component within a broader healthy lifestyle, but it should not be viewed as a direct or standalone fat-burning supplement. Always consult a healthcare professional before starting any new supplement.

Our Certifications