Wellgreen Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of grape seed extract in China. With abundant experience, our factory provide high quality natural food supplements for human nutritional products, health care products and cosmetic products. Welcome to place an order.
Products Description
Grape Seed Extract is a highly concentrated industrial derivative obtained from the seeds of red grapes. As a premier source of Oligomeric Proanthocyanidins (OPC), it stands as one of the most powerful natural free-radical scavengers in the nutraceutical industry.
At Wellgreen, our extraction process utilizes advanced membrane separation and low-temperature vacuum drying to preserve the delicate polyphenolic structure. This ensures that our Grape Seed Extract powder maintains its biological activity and high bioavailability. Scientific research identifies OPC as a bioflavonoid with antioxidant capabilities 20 times stronger than Vitamin C and 50 times stronger than Vitamin E, making it an essential functional ingredient for cardiovascular health, skin protection, and cognitive support.

Specifications (Technical Data Sheet)
| Analysis Item | Specification | Test Method |
| Active Ingredient | Oligomeric Proanthocyanidins (OPC) | UV / HPLC |
| Assay (OPC) | ≥ 95.0% | UV |
| Polyphenols | ≥ 95.0% | Folin-C |
| Appearance | Fine Red-Brown Powder | Visual |
| Particle Size | 100% through 80 mesh | Sieve Analysis |
| Loss on Drying | ≤ 5.0% | 5g / 105℃ / 2h |
| Ash Content | ≤ 3.0% | 2g / 525℃ / 3h |
| Heavy Metals | Total < 10ppm (Pb < 2ppm, As < 1ppm) | ICP-MS |
| Microbiological | Total Plate Count < 1000cfu/g; E.Coli: Negative | CP2020 |
Features
Exceptional Bioavailability: Our standardized OPC molecules are optimized for rapid systemic absorption.
Oxidative Stability: Advanced stabilization technology prevents the Grape Seed Extract powder from darkening or losing potency during shelf life.
Clean Label Profile: 100% natural extraction using food-grade ethanol; zero synthetic solvents, carriers, or artificial additives.
Low Astringency: Refined sensory profile that minimizes the typical bitter taste of tannins, perfect for gummies and chewables.
Applications
Nutraceuticals: The primary ingredient in "Beauty from Within" capsules and Grape Seed Extract antioxidant complex tablets.
Functional Food & Beverages: High water solubility allows for integration into energy drinks, wellness shots, and fortified snacks.
Cosmeceuticals: Widely utilized in premium anti-aging creams and serums to protect skin collagen and reduce UV-induced oxidative stress.
Natural Preservative: Employed in the food industry (especially in Europe and the USA) as a natural antioxidant to extend the shelf life of oils and meats.

Why Choose Wellgreen Grape Seed Extract?
Source Control: We manage raw material procurement directly from specialized vineyards, ensuring the seeds are processed fresh to prevent oxidation of the proanthocyanidins.
R&D Excellence: Our team of PhD-level scientists continuously optimizes extraction efficiency, resulting in a higher monomeric OPC content, which is more bioactive than polymer forms.
Advanced Manufacturing: Our cGMP-certified facility utilizes stainless steel 316-grade equipment, ensuring zero cross-contamination and pharmaceutical-grade hygiene.
Customization & Logistics: We offer micronized powders, granulated forms for direct compression, and customized concentrations. With warehouses in strategic hubs, we guarantee rapid delivery to over 50 countries.
Packaging: 25kg net in fiber drums with inner double PE bags. Custom sizes (1kg, 5kg) available for sampling.

Elevate Your Product Line with Science-Backed Ingredients
Ready to discuss your formulation requirements or request a bulk quotation? Our technical team is available to provide COA, MSDS, and free samples for your R&D trials.
[Contact Our Export Department Today → liu@wellgreenxa.com]

FAQ
Q: Is Grape Seed Extract an effective antioxidant?
A: Yes, it is one of the most effective natural antioxidants available. The Grape Seed Extract antioxidant properties come from its high concentration of OPCs, which help neutralize free radicals, protecting cells from oxidative damage and supporting overall vascular health.
Q: Are there any negative side effects of Grape Seed Extract?
A: When used within recommended dosages, it is generally recognized as safe (GRAS). However, due to its ability to improve circulation, individuals on blood-thinning medications should consult a professional. As a B2B supplier, we provide full safety data sheets (MSDS) for all industrial applications.
Q: Does Grape Seed Extract powder help with skin hyperpigmentation?
A: Scientific studies suggest that the polyphenols in Grape Seed Extract benefit skin health by inhibiting melanin production and protecting against UV-induced oxidative stress, which are the primary causes of hyperpigmentation and age spots.
Q: Is it safe to take Grape Seed Extract every day?
A: Standardized GSE is safe for daily consumption in both food and supplement formats. Most clinical trials utilize dosages ranging from 100mg to 300mg per day for long-term health maintenance.
Q: What is the shelf life of your Grape Seed Extract powder?
A: Our GSE has a stable shelf life of 24 months when stored in a cool, dry place away from direct sunlight. We use double-layer PE bags inside fiber drums for maximum protection during transit.
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