Grape Seed Extract, OPC

English name: grape seed extract

Latin Name: Vitis vinifera L.

Active ingredients: Proanthocyanidins, Polyphenols

Specification: Proanthocyanidins (OPC) 95% UV; Polyphenols 70%, 90%, 95%

Use Part: Seed

Appearance: Reddish brown fine powder

Mesh size: 80 Mesh

Test Method: UV

Description:

Grape seed extract is a standardized botanical ingredient obtained from the seeds of Vitis vinifera L., a plant that has been widely cultivated and utilized for both nutritional and traditional applications for centuries. Modern grape seed extract OPC is produced through controlled extraction and purification processes designed to concentrate naturally occurring proanthocyanidins and polyphenols while preserving their structural integrity.

The primary active components of grape seed extract are oligomeric proanthocyanidins (OPC), a class of bioflavonoids recognized for their strong antioxidant properties. These compounds are water-soluble polyphenols that readily interact with free radicals and oxidative intermediates, helping to protect cellular membranes and connective tissues from oxidative stress.

High-purity grape seed extract OPC is particularly valued for its broad antioxidant spectrum. Compared with single-molecule antioxidants, the proanthocyanidin complexes present in grape seed extract demonstrate synergistic activity, enabling more comprehensive free-radical scavenging in both aqueous and lipid environments. This functional versatility makes grape seed extract a preferred ingredient in nutrition, cosmetic, and functional food formulations.

Grape seed extract OPC is also known for its excellent stability, mild sensory profile, and compatibility with a wide range of formulations. The presence of proanthocyanidin B2, one of the most bioactive OPC fractions, further enhances the functional value of grape seed extract. Due to its favorable safety profile, grape seed extract has been used in Europe and other global markets for decades as a well-established botanical antioxidant ingredient.

Function:

1. Provides strong antioxidant activity by neutralizing free radicals and reducing oxidative stress.

2. Supports eye health by helping to maintain microcirculation and reducing oxidative damage associated with age-related visual decline.

3. Contributes to cardiovascular health by supporting vascular elasticity and normal blood vessel function.

4. Helps reduce oxidative risk factors associated with cellular aging processes.

5. Enhances vascular strength by supporting the flexibility and integrity of capillary and blood vessel walls.

6. Exhibits anti-inflammatory properties that may assist in reducing swelling related to oxidative or inflammatory stress.

Application:

1. Grape seed extract OPC can be formulated into capsules, tablets, granules, or powders as a functional ingredient in dietary supplements and health food products.

2. Grape seed extract is widely used in beverages, wines, and cosmetic formulations as a natural antioxidant and functional additive.

3. Grape seed extract OPC is incorporated into various food products, including bakery items and dairy products, where it functions as a natural antioxidant and supportive preservative, particularly in European and North American markets.

Grape Seed Extract OPC — FAQ Section

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