Our brand Landnutra supplies a high‑purity Resveratrol Extract Powder, standardized to ≥98% trans‑resveratrol by HPLC - the potent polyphenol with strong antioxidant capacity, widely formulated into anti‑aging, cardiovascular, and metabolic health supplements.
The Power of trans‑Resveratrol
Standardization removes impurities like emodin, concentrating the active trans‑resveratrol to a consistent ≥98% - delivering reliable antioxidant potency and batch‑to‑batch consistency for your product line.
Resveratrol Extract vs. Japanese Knotweed Root Powder
Unlike raw Japanese knotweed root powder with variable and low resveratrol content, Landnutra's standardized extract guarantees ≥98% trans‑resveratrol, ensuring each dose aligns with research‑backed actives.
Specification
trans‑Resveratrol ≥98.0% (HPLC)
Sample: Available
Test method: HPLC / UV
Synonyms: trans‑Resveratrol, Polygonum cuspidatum extract, resveratrol powder
MOQ: 1 KG | Package: 1kg/foil bag, 25kgs/drum
Certificate: HACCP, ISO 22000, HALAL, GMP, Kosher (available upon request)
Botanical Source: Polygonum cuspidatum Sieb. et Zucc. root | CAS: 501-36-0
Product Characteristics
Appearance
Active Markers
Solubility
Purity
Particle Size
GMP Manufacturing
Benefits Of Resveratrol Extract Powder
Benefits Of Ginkgo Biloba Extract Powder
01 Antioxidant Protection
Provides strong radical‑quenching capacity, helps protect cells from oxidative stress - a core ingredient for anti‑aging and vitality formulas.
02 Cardiovascular Support
Supports healthy blood vessel function and normal inflammatory response, widely used in heart‑health supplements.
03 Healthy Aging & Longevity
Associated with sirtuin activation and mitochondrial support, contributing to cellular longevity and healthy aging.
04 Metabolic Health
Helps maintain normal insulin sensitivity and metabolic function, complementing weight management and wellness products.
05 Cognitive & Brain Health
May support normal cognitive function and healthy brain aging, a popular nootropic ingredient in brain‑health stacks.
06 Skin & Beauty
Used in nutricosmetics for its ability to protect against environmental stressors and support skin radiance from within.
Application Fields
Dietary Supplements (Hero Application): Anti‑aging capsules, heart‑health formulas, metabolic support blends, nootropic stacks, beauty‑from‑within nutricosmetics, daily wellness multis.
OEM Finished Products: 250 mg/500 mg capsules, tablets, powder sachets, functional beverages; full custom manufacturing available. Our brand Landnutra supports bulk Resveratrol Extract Powder buyers with application‑specific formats from powder to finished dose.
Production Process
Select Japanese knotweed roots, extract with ethanol‑water, purify via macroporous resin, concentrate, crystallize, dry, and sieve to obtain high‑purity trans‑resveratrol extract powder.
Product Quality Advantage
≥98% trans‑Resveratrol – HPLC‑verified purity
Low Emodin ≤0.5% – allergen‑safe, clean profile
Good Ethanol Solubility – ideal for liquid extracts and tinctures
Low Heavy Metals – Pb <0.5 ppm, As <0.5 ppm, Cd <0.1 ppm
Good Flowability – efficient capsule and tablet filling
cGMP Certified – batch‑specific COA with full traceability
Annual Capacity: 200 Tons | 15+ years of coenzyme Q10 ingredient expertise
Professional ODM/OEM Services
Our brand Landnutra offers full‑service manufacturing with Resveratrol Extract Powder as the active:
Finished Dosage Forms - Capsules (250 mg, 500 mg; vegetarian/gelatin), tablets (direct compression or wet granulation, debossing available), powder blends (stick packs or tubs, paired with NMN, Quercetin, or B‑vitamins), functional beverages (micro‑encapsulated or solubilized grades for aqueous stability).
Additional Services - Flavor masking, sweetener system selection, third‑party certifications (Kosher, HALAL, NSF), stability study management, regulatory dossier support.
Export Certificates
Complete certification documentation - including ISO 22000, GMP, HALAL, and batch‑specific COA - ready for your compliance review. For the latest certificate pack or a custom resveratrol extract powder quotation, reach out to our team at wangjing@landnutra.com or WhatsApp +86 18092657549 - we respond within one business day.
Why choose us
XI'AN LANDNUTRA CO., LTD. - Your source for standardized botanical extracts and functional polyphenol ingredients.
Strong Production Capability - 200‑ton annual capacity for resveratrol extracts, 15+ years of herbal ingredient mastery.
Leading Service - One‑stop OEM/ODM from concept to after‑sales.
Quality Assurance - CQC‑certified enterprise; purity verified by HPLC, ICP‑MS, and microbiological testing.
Broad Market Reach - Supplying resveratrol extract powder, bulk trans‑resveratrol, and custom formulations globally.
cGMP‑Certified Facilities - Full in‑house custom manufacturing, regulatory documentation for global markets, batch‑specific COA including trans‑resveratrol and emodin content, plus formulation and stability support.
FAQ
| Test Item | Specification (Dietary Supplement Grade) | Test Result | Conclusion |
|---|---|---|---|
| Appearance | Off‑white to pale yellow powder | Conforms | Pass |
| Assay (trans‑Resveratrol, HPLC) | ≥98.0% | 98.6% | Pass |
| Emodin (HPLC) | ≤0.5% | 0.1% | Pass |
| Loss on Drying | ≤3.0% | 1.8% | Pass |
| Lead (Pb) | ≤1.0 ppm | <0.5 ppm | Pass |
| Arsenic (As) | ≤1.0 ppm | <0.5 ppm | Pass |
| Cadmium (Cd) | ≤0.5 ppm | <0.1 ppm | Pass |
| Total Plate Count | ≤1,000 cfu/g | <100 cfu/g | Pass |
| E. Coli / Salmonella | Negative | Negative | Pass |
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