Polygonum Cuspidatum Extract – High Purity Resveratrol Powder Supplier | Bulk B2B Factory China
AIHerba® offers high-quality Polygonum Cuspidatum Extract with standardized resveratrol content (20–98% HPLC), produced in a GMP-certified facility in Shaanxi, China. Our bulk extract is ideal for cosmetics, nutraceuticals, dietary supplements, and functional foods, offering consistent purity, batch traceability, and compliance with international quality standards. With over 28 years of production and R&D experience, AIHerba delivers factory-direct supply, full COA/MSDS/TDS documentation, and OEM/ODM services to meet global B2B sourcing needs. Purchase with confidence from a trusted supplier with highly stable, natural botanical extracts for innovative product formulations. Contact us for quotes, samples, and compliance documentation.
1. Product Overview
Polygonum Cuspidatum (Japanese Knotweed) is a traditional medicinal plant widely recognized as a rich natural source of trans-resveratrol and polydatin. Extracted from the root, our product delivers a highly concentrated, water-soluble and oil-soluble powder, suitable for incorporation in dietary supplements, functional foods, and cosmetic formulations. AIHerba® ensures purity, stability, and traceable sourcing through modern extraction techniques, including supercritical CO₂, water-ethanol extraction, and microbial fermentation.
2. Technical Specifications
| Parameter | Specification | Testing Method |
|---|---|---|
| Resveratrol Content | 20–98% | HPLC |
| Polydatin Content | ≥ 10% | HPLC |
| Appearance | Light yellow to brown powder | Visual |
| Odor | Characteristic | Sensory |
| Mesh Size | 80–120 mesh | Sieve Analysis |
| Solubility | Water & ethanol soluble | Lab Test |
| Loss on Drying | ≤ 5% | GB/T 5009.3 |
| Ash | ≤ 2% | AOAC 923.03 |
Pesticide Residues
| Compound | Max Residue | Testing Method |
|---|---|---|
| Organochlorine Pesticides | ND | GC-MS |
| Organophosphate Pesticides | ND | GC-MS |
Heavy Metals
| Metal | Limit | Testing Method |
|---|---|---|
| Lead (Pb) | ≤ 1 ppm | ICP-MS |
| Arsenic (As) | ≤ 1 ppm | ICP-MS |
| Mercury (Hg) | ≤ 0.1 ppm | ICP-MS |
| Cadmium (Cd) | ≤ 1 ppm | ICP-MS |
Microbial Testing
| Microorganism | Limit | Testing Method |
|---|---|---|
| Total Plate Count | ≤ 1000 CFU/g | AOAC 990.12 |
| Yeast & Mold | ≤ 100 CFU/g | AOAC 997.02 |
| E. coli | Negative | AOAC 991.14 |
| Salmonella | Negative | AOAC 2003.09 |
| Staphylococcus aureus | Negative | AOAC 2003.07 |
3. Source & Production Process
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Raw Material: Roots of Polygonum Cuspidatum grown in controlled regions of China.
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Extraction: Supercritical CO₂, water-ethanol extraction, microbial fermentation.
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Purification: Multi-step filtration and drying to achieve stable, high-purity resveratrol.
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Quality Control: Batch testing for potency, heavy metals, microbial safety, and pesticide residues.
Production Flow:
Raw Material → Cleaning → Extraction → Filtration → Concentration → Drying → Milling → QC Testing → Packaging → Traceable Inventory
4. Health Benefits & Mechanism of Action (Informative, Non-Therapeutic)
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Antioxidant Support: Rich in resveratrol and polydatin, which act as natural antioxidants.
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Stability: Highly stable powder suitable for incorporation into capsules, tablets, and cosmetic serums.
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Bioavailability: Polydatin enhances solubility and absorption in formulations.
Note: This section is educational; no medical claims are made.
5. Traditional Uses
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Used historically in East Asian medicine for general wellness.
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Traditionally utilized in food supplements and herbal formulations.
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Root extracts have a long-standing history in cosmetic and nutraceutical applications.
6. Recommended Usage & Formulation Guidelines
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Typical dosage in dietary supplements: 50–500 mg per serving, depending on formulation.
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Cosmetic formulations: 0.1–1% w/w in serums and creams.
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Functional foods & beverages: 0.05–0.2% w/w as antioxidant additive.
Formulation Tips:
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Compatible with water and ethanol-based systems.
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Avoid high-temperature degradation; store in dry, cool conditions.
7. Packaging, Storage & Shelf Life
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Packaging: 25 kg/drum; inner bag with moisture-proof, food-grade liner.
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Storage: Cool, dry, dark conditions. Avoid direct sunlight.
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Shelf Life: 24 months under recommended storage.
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Sample Policy: Small sample packs available for evaluation.
8. B2B Purchase Information
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MOQ: 1 kg for sample, 25 kg for bulk orders.
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Shipping: Global shipping via sea, air, or courier.
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OEM/ODM: Customized formulations available for private labeling.
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COA/MSDS/TDS: Provided upon request.
9. Clinical Data & Latest Research
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Reference: Polyphenolic composition and antioxidant activity studies (PubMed: 37241822)
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Regulatory: Compliance with FDA, EU, and ISO standards.
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Recent research: Resveratrol content correlated with stability and activity in cosmetic and nutraceutical applications.
10. Industry Applications & Case Scenarios
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Dietary Supplements: Used by capsule and tablet manufacturers to deliver natural antioxidants.
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Cosmetic Industry: Incorporated into anti-aging serums, skin protection creams, and antioxidant blends.
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Functional Beverages & Foods: Added to beverages, protein powders, and snack bars for natural bioactive support.
11. Comparative Purchasing Guide
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Choose suppliers based on resveratrol purity, batch consistency, COA availability, and GMP compliance.
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AIHerba® provides factory-direct sourcing, ensuring traceable supply, competitive pricing, and technical support.
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Polydatin content enhances bioavailability, differentiating our extracts from generic resveratrol powders.
12. Manufacturer & Quality Assurance
Manufactured by AIHerba® (Shaanxi Zhonghong Investment Technology Co., Ltd.), a GMP-certified manufacturer specializing in high-purity botanical extracts for dietary supplements, cosmetics, and pharmaceutical applications.
✔ GMP-certified production facility
✔ Full COA & technical specifications available
✔ Batch traceability & strict quality control
✔ Bulk supply & OEM/ODM services for global B2B buyers
Contact: 📧 sales@aiherba.com | info@aiherba.com | liaodaohai@gmail.com
Website: 🌐 www.aiherba.com
13. Frequently Asked Questions (FAQ)
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Q: What is the resveratrol content in your Polygonum Cuspidatum extract?
A: Available from 20% to 98% HPLC verified. -
Q: Can I get COA before ordering?
A: Yes, full COA, MSDS, and TDS are provided. -
Q: What is the minimum order quantity (MOQ)?
A: Sample: 1 kg; Bulk: 25 kg. -
Q: Is this product suitable for cosmetic formulations?
A: Yes, compatible with water and ethanol-based creams and serums. -
Q: How should the product be stored?
A: Store in cool, dry, and dark conditions, away from direct sunlight. -
Q: Can AIHerba provide OEM/ODM services?
A: Yes, customized formulations, private labeling, and bulk solutions are available.
14. References & Regulatory Sources
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AOAC Official Methods: AOAC International
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EU Regulation 2015/2283 (Novel Food Compliance)
15. Contact Us
AIHerba® | Shaanxi Zhonghong Investment Technology Co., Ltd.
📍 Address: Xi’an, Shaanxi, China
📧 Email: sales@aiherba.com | info@aiherba.com | liaodaohai@gmail.com
🌐 Website: www.aiherba.com
