Grape Seed Extract, Vitis Vinifera Extract, Oligomeric Proanthocyanidins (OPCs), Polyphenols, Antioxidant, Anti-Aging, Cardiovascular Support, Skin Protection, Anti-Inflammatory, Food Grade
1. Product Description & Key Parameters
Grape Seed Extract is a natural botanical extract derived from the dried seeds of Vitis vinifera L., a well-known fruit plant in the Vitaceae family. As a premium by-product of grape processing (wine and juice production), grape seeds are rich in bioactive substances and have been valued for their nutritional and health benefits for centuries. It is mainly cultivated in Mediterranean regions, China, and South America, with high-quality raw materials sourced from pollution-free ecological bases. The extract is produced via advanced technologies including ethanol reflux extraction, ultrasonic-assisted extraction, purification, and spray drying, which efficiently concentrate core active components while preserving their activity. The final product is a reddish-brown to purple fine powder with a slight characteristic herbal aroma, good flowability, no visible impurities, and uniform particle size. It has excellent solubility in water and ethanol, facilitating its application in various formulations
Core Parameters:
- Assay Ratio: Customizable (5:1, 10:1, 20:1); standard 10:1. Also available in concentrated specs: OPCs ≥95%, Polyphenols ≥80%-90%.
- Active Ingredients: Oligomeric Proanthocyanidins (OPCs) ≥95.0%, Total Polyphenols ≥85.0%, Catechins ≥12.0%, Vitamin E ≥1.5%, Resveratrol ≥0.1%.
- Loss on Drying: ≤5.0%
- Ash Content: ≤5.0%
- Heavy Metals: ≤10ppm (Pb ≤1.0ppm, Cd ≤0.3ppm, As ≤1.0ppm, Hg ≤0.1ppm)
- Microbial Limits: Total Aerobic Microbes ≤1000cfu/g, Yeast & Mold ≤100cfu/g, Coliforms/Salmonella: Negative.
- Solubility: ≥95% soluble in hot water (80°C, 10% w/v); ≥90% soluble in ethanol (70% v/v); ≥50% soluble in cold water.
- Particle Size: 80-100 mesh (standard)
- pH Value: 5.0-7.0 (1% aqueous solution)
- Shelf Life: 24 months (sealed, cool, dry, protected from light)
- Certifications: ISO 9001, GMP, HACCP, Halal, Kosher, Non-GMO, Allergen-Free
2. Features
- Natural & Premium Sourcing: Raw materials are selected from mature, pesticide-free grapes; seeds are separated, cleaned, and low-temperature dried to retain heat-sensitive active components (e.g., OPCs, vitamin E). No artificial colors, flavors, or preservatives are added.
- High-Purity & Standardized: Strict quality control ensures batch consistency. Standard OPCs ≥95% (HPLC verified) meets international premium standards; precise extraction maximizes active content, ensuring strong efficacy.
- Powerful Antioxidant Activity: OPCs are internationally recognized as one of the most effective natural antioxidants, with an antioxidant capacity 50 times that of vitamin E and 20 times that of vitamin C, enabling efficient free radical scavenging.
- Excellent Solubility & Compatibility: Good solubility in water/ethanol and compatibility with most formulation ingredients allows flexible use in capsules, tablets, oral liquids, and skincare products without texture interference.
- Safe & Multi-Functional: Non-toxic, non-irritating, and non-addictive at recommended doses; integrates antioxidant, anti-aging, cardiovascular-protective, and anti-inflammatory benefits for wide application.
3. Functions
- Potent Antioxidant & Anti-Aging: OPCs and polyphenols scavenge free radicals, reduce oxidative stress, protect cells from damage, delay aging, and improve skin dullness and fine lines.
- Cardiovascular Protection: Improves blood vessel elasticity, reduces blood viscosity, inhibits platelet aggregation, lowers blood pressure, and prevents atherosclerosis and coronary heart disease.
- Skin Protection & Repair: Blocks UV damage, inhibits melanin production, brightens skin tone, promotes collagen synthesis, enhances skin elasticity, and repairs damaged skin barriers.
- Anti-Inflammatory & Immune Enhancement: Inhibits inflammatory factors (e.g., NF-κB), relieves chronic inflammation, enhances macrophage phagocytosis, and boosts immune function.
- Eye Health Support: Protects retinal cells from oxidative damage, relieves eye fatigue and dryness, and prevents age-related macular degeneration and cataracts.
- Metabolic & Liver Support: Inhibits fat accumulation, promotes fat metabolism, assists in weight management, and protects liver cells from toxin damage.
4. Application Fields
- Pharmaceutical Industry: As a raw material for antioxidant, cardiovascular-protective, and anti-inflammatory drugs; used in oral preparations for adjuvant treatment of hypertension, atherosclerosis, and chronic inflammation.
- Healthcare Products: Functional ingredient in capsules, tablets, oral liquids, and health teas; targeted at anti-aging, cardiovascular care, skin health, and immune enhancement. Suitable for sub-healthy groups, the elderly, and those with high oxidative stress.
- Cosmetics & Personal Care: Added to anti-aging serums, whitening creams, sunscreens, and masks. Its antioxidant and UV-protective properties repair skin, delay aging, and soothe sensitivity.
- Food & Beverage: Natural additive in functional beverages, health teas, nutritional bars, and baked goods; enhances health value with antioxidant and preservative effects.
- Other Fields: Used in feed additives to enhance livestock immunity and growth; also applied in botanical research and natural health product development.
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