Easy Health Inc. is proud to offer Pharmaceutical Grade Polygonum Cuspidatum Extract Powder with 98% Trans-Resveratrol purity certified by HPLC. Our extract is from premium Polygonum cuspidatum roots, with ≥99% bioactive Trans-configuration and low cis-isomer contaminants. Our solvent-free crystallisation technique employs only food-grade ethanol and water, leaving no toxic residue such as ethyl acetate or dichloromethane.
Our powder is micronised (D90 ≤20μm) for easy incorporation in capsules, tablets and cosmetic formulations. We have 11+ years of botanical experience, we are ISO, Halal, Kosher and USDA Organic certified and we guarantee full traceability from raw material to your business. Every batch is tested to meet EU and US import requirements, so you can be assured with every order.

Traditional knotweed preparations are generally rich in emodin, which causes gastric pain and restricts therapeutic usage. Our sophisticated purifying procedure completely removes this laxative ingredient.
You get pure Trans-Resveratrol without the ill effects of crude formulations. This makes our product appropriate for sensitive applications such as anti-aging supplements and professional skin care lines.
We have the botanical fingerprinting and optional C14 testing to prove natural origin. You can sell your items as truly plant derived, not synthetic substitutes. This verification is important when your clients are asking for transparency and natural solutions.

| Parameter | Specification |
|---|---|
| Product Name | Polygonum Cuspidatum Extract Powder |
| Botanical Source | Polygonum cuspidatum |
| Part Used | Root |
| Active Ingredient | Resveratrol |
| Specification | 98% |
| CAS No. | 501-36-0 |
| Appearance | Fine White Powder |
| Odour | Characteristic |
| Mesh Size | 95% through 80 mesh |
| Loss on Drying | ≤1.0% |
| Total Ash | ≤1.0% |
| Bulk Density | 45-55 g/100mL |
| Lead (Pb) | ≤2.0 mg/kg |
| Arsenic (As) | ≤2.0 mg/kg |
| Cadmium (Cd) | ≤1.0 mg/kg |
| Mercury (Hg) | ≤0.1 mg/kg |
| Total Plate Count | ≤1000 cfu/g |
| Yeast & Mold | ≤100 cfu/g |
| E. Coli | Negative |
| Salmonella | Negative |
| Test Method | HPLC |

With our extract, your formulations are given substantial antioxidant support. Trans-Resveratrol stimulates SIRT1 lifespan genes that help promote cellular health and healthy ageing processes.
For Brands in Nutraceutical:
Make high-quality anti-aging vitamins for cardiovascular health and metabolic health. Our extract prevents LDL oxidation and supports a healthy inflammatory response.
For Cosmetic Formulators:
Make high-performance serums and UV-repair creams. The tyrosinase inhibitory characteristics are great in skin brightening products, better than many synthetics in complicated emulsions.
For Functional Food Developers: -
Incorporate bioactive substances into beverages and fortified foods. Our water soluble encapsulated version (available on MOQ request) disperses evenly in liquid compositions.
For Animal Nutrition:
Apply natural substitutes to antibiotic growth boosters. Our Extract assists in managing oxidative stress in high density farming areas and promotes immunological function.

Unequalled Purity Standards
Our Trans-Resveratrol is >99% with very little inactive cis-isomers. This pharmaceutical grade quality is to assure consistent efficacy from your product batches.
Clean Processing
We eliminated the harsh solvents from our manufacturing. You get residue free powder that meets the most stringent import regulations for Europe and North America.
Advanced Particle Engineering
Our micronisation method gives homogeneous particles with D90 ≤20μm. This results in better mixing into solid doses and greater bioavailability in the finished products.
Variable Order Quantities
Start with 500g standard MOQ Or ask for 50g samples for R&D testing. From development to commercial production, we scale without a hitch.
Quick, Dependable Delivery
Ready stock of standard products is shipped immediately. Most custom specs ship in 3-5 days, so your production schedule stays on track.

Every batch of our Polygonum Cuspidatum Extract Powder undergoes comprehensive testing before shipment. We provide complete documentation including:
Our quality management system holds ISO certification and complies with FDA registration requirements. Halal and Kosher certifications expand your market reach to diverse consumer groups.
Full traceability connects each package to specific harvest batches. You can trace the journey from field to your facility, meeting audit requirements for pharmaceutical and organic certifications.

Easy Health Inc. is more than 11 years old in providing professional technical support and consistent quality for worldwide clientele. With our customer-oriented approach you obtain more than just ingredients – you receive a development partner.
We can provide full R&D support ranging from recipe optimisation and efficacy testing to application advice. Our seasoned staff will take you through regulatory procedures and speed up your time to market.
OEM/ODM Custom Services to meet the particular needs of your brand. Whether it is a custom spec or a packaging design, we will work to your needs without sacrificing our quality standards.

Q: What is your minimum order quantity (MOQ)?
Standard MOQ is 500g. Sample packs of 50g are available for R&D and testing.
Q: What is the difference between crystalline powder and water-soluble powder?
Crystalline powder is water-insoluble, suitable for softgels and suspensions. Water-soluble powder is encapsulated for beverages and oral liquids.
Q: How do you prove it is natural from Polygonum cuspidatum, not synthetic?
We provide HPLC fingerprint and optional C14 test to confirm botanical origin with no synthetic byproducts.
Q: What finished dosage forms are suitable?
Softgels (oil suspension), hard capsules (direct fill), tablets (after granulation), and topical skincare.

Ready to elevate your formulations with premium Polygonum Cuspidatum Extract Powder? Email us at devin@easyhealthbio.com to start your order today.