Our brand Landnutra supplies pure grape seed extract powder, standardized to ≥95% proanthocyanidins (OPC) by UV - the water‑soluble polyphenol powerhouse with exceptional free‑radical scavenging capacity, widely formulated into cardiovascular wellness, anti‑aging, skin beauty, and sports recovery supplements.
The Power of Oligomeric Proanthocyanidins
Standardization concentrates the bioactive OPC fraction to ≥95%, removing inert fiber, sugars, and tannins - delivering consistent antioxidant potency and batch‑to‑batch reliability that generic grape seed powders cannot match.
Pure Grape Seed Extract vs. Standard Grape Seed Powder
Unlike raw grape seed powder with variable and low OPC content, Landnutra's pure grape seed extract guarantees ≥95% proanthocyanidins, ensuring each dose aligns with research‑backed efficacy and meets global supplement quality expectations.
Specification
Proanthocyanidins ≥95.0% (UV)
Sample: Available
Test method: UV / HPLC / USP
Synonyms: Grape seed OPC, oligomeric proanthocyanidins, Vitis vinifera extract
MOQ: 1 KG | Package: 1kg/foil bag, 25kgs/drum
Certificate: HACCP, ISO 22000, HALAL, GMP, Kosher (available upon request)
Botanical Source: Vitis vinifera L. seeds | CAS: 84929-27-1
Product Characteristics
Appearance
Active Markers
Solubility
Purity
Particle Size
GMP Manufacturing
Benefits Of Pure Grape Seed Extract Powder
01 Superior Antioxidant Network
OPCs quench free radicals more effectively than vitamins C and E, and regenerate oxidized vitamin C - establishing a cascading antioxidant defense ideal for daily wellness and anti‑aging supplements.
02 Cardiovascular & Vascular Integrity
Clinically associated with maintaining healthy blood pressure, capillary strength, and venous tone, making it a staple in heart‑health and circulatory support blends.
03 Collagen Protection & Skin Anti‑Aging
Proanthocyanidins bind to collagen and elastin, shielding them from UV‑induced enzymatic breakdown and promoting skin firmness - a go‑to ingredient for nutricosmetics and beauty‑from‑within products.
04 Anti‑Inflammatory & Recovery
Helps modulate inflammatory mediators, reducing post‑exercise muscle soreness and supporting joint comfort - well‑suited for sports nutrition and active‑lifestyle formulations.
05 Cognitive & Neurovascular Support
By promoting microcirculation and protecting neurons from oxidative stress, grape seed OPCs contribute to focus, memory, and healthy brain aging stacks.
06 Formulation Versatility
Highly water‑soluble and compatible with a wide pH range; easily integrated into capsules, tablets, powders, ready‑to‑drink beverages, gummies, and topical creams.
Application Fields
Dietary Supplements (Hero Application): Antioxidant capsules, heart‑health formulas, vein & leg comfort tablets, anti‑aging multis, sports recovery powders.
OEM Finished Products: 100 mg/200 mg OPC capsules, beauty‑from‑within stick packs, effervescent antioxidant tablets, ready‑to‑drink functional shots; full custom manufacturing available. Our brand Landnutra supports bulk pure grape seed extract powder buyers with application‑specific formats from powder to finished dose.
Production Process
Selected grape seeds are extracted, purified, spray-dried into uniform OPC-rich powder.
Product Quality Advantage
≥95% OPC – HPLC/UV‑verified potency, pharmacopoeia‑grade consistency.
Excellent Water Solubility – disperses instantly without sedimentation, ideal for clear beverages.
Low Heavy Metals – Pb <0.5 ppm, As <0.5 ppm, Cd <0.1 ppm.
Good Flowability – efficient capsule and tablet filling.
Solvent‑Free & Clean Label – extracted with ethanol‑water only, non‑GMO, vegan, allergen‑free.
cGMP Certified – batch‑specific COA with full traceability.
Annual Capacity: 200 Tons | 15+ years of botanical polyphenol expertise.
Professional ODM/OEM Services
Our brand Landnutra offers full‑service manufacturing with Pure Grape Seed Extract Powder as the active:
Finished Dosage Forms – Capsules (100 mg, 200 mg OPC; vegetarian/gelatin), tablets (direct compression or chewable), powder blends (stick packs or tubs, paired with vitamin C, zinc, or collagen), functional beverages (clear antioxidant shots, ready‑to‑mix powders), gummies and soft chews.
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 tailored pure grape seed 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 high‑potency grape seed OPC and standardized polyphenol ingredients.
Strong Production Capability – 200‑ton annual capacity for grape seed extracts, 15+ years of botanical polyphenol mastery.
Leading Service – One‑stop OEM/ODM from concept to after‑sales.
Quality Assurance – CQC‑certified enterprise; purity verified by UV, HPLC, ICP‑MS, and microbiological testing.
Broad Market Reach – Supplying pure grape seed extract powder, bulk OPC, and custom formulations globally.
cGMP‑Certified Facilities – Full in‑house custom manufacturing, regulatory documentation for global markets, batch‑specific COA including OPC content, catechins, and heavy metals, plus formulation and stability support.
Our brand Landnutra also supplies Pure Pine Bark Extract Powder (≥95% OPC) and French Maritime Pine Bark Extract (Pycnogenol®‑equivalent) under the same quality system - ask about the right format for your antioxidant product line. As experienced pure grape seed extract powder manufacturers, we deliver both standard powder and value‑added micronized grades.
FAQ
| Test Item | Specification (Dietary Supplement Grade) | Test Result | Conclusion |
|---|---|---|---|
| Appearance | Reddish‑brown fine powder | Conforms | Pass |
| Proanthocyanidins (UV, as OPC) | ≥95.0% | 96.5% | Pass |
| Loss on Drying | ≤5.0% | 3.5% | Pass |
| Ash Content | ≤3.0% | 1.8% | Pass |
| Heavy Metals (as Pb) | ≤10 ppm | <3 ppm | Pass |
| Lead (Pb) | ≤1.0 ppm | <0.5 ppm | Pass |
| Arsenic (As) | ≤1.0 ppm | <0.3 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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