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Grape seed extract is extracted from grape seed, which includes a lot of oligomeric procyanidin. Oligomeric procyanidin, also named Proanthocyanidins (OPC), is a powerful antioxidant contained in grape seeds that cannot be synthesized in the human body. OPC's antioxidant effect is more powerful than Vitamin C and 52 times stronger than Vitamin E. It helps to strengthen the immune system and delay the aging process.
Proanthocyanidin B2 is the most effective compound that neutralizes aging-causing free radicals and is only found in grape seeds. In Europe, OPC from the original extract of grape seed has been adopted and used as a safe and effective compound for decades. Thus, Grape seed extracts possess a high market value. At present, it has been widely used in health products, medicine, and cosmetics industries.
Proanthocyanidin (OPC) content exceeds 95% with strong antioxidant activity.
Extracted from natural grape seeds, free of any chemical additives. Complete ISO, Halal and Kosher certifications available.
Ample inventory supports sample testing and bulk wholesale. COA and MSDS documents can be provided.
| Product Name | Specification | Product Name | Specification |
|---|---|---|---|
| Bilberry Extract | 1%-25% Anthocyanidin (UV) 1%-36% Anthocyanin (HPLC) 5:1, 10:1, 20:1 (TLC) |
Black wolfberry/Goji Extract | 1%-25% Anthocyanidin (UV) 1%-25% Anthocyanin (HPLC) |
| Blackberry Extract | Anthocyanidins 1%-25% UV 5:1, 10:1, 2 |
Black Currant Extract | 1%-25% Anthocyanidins (UV) 1%-36% Anthocyanin (HPLC) 1%-60% Proanthocyanidins (UV) |
| Black Elderberry | 1%-25% Anthocyanidin (UV) 1%-36% Anthocyanin (HPLC) 1, 10:1, 20:1 (TLC) |
Blueberry Extract | 1%-25% Anthocyanidins (UV) 1%-36% Anthocyanin (HPLC) 1%-30% Pterostilbene (HPLC) |
| Black Rice Extract | 1%-25% Anthocyanidins (UV) 1-35% C3G |
Acai Berry Extract | 1%-25% Anthocyanidins (UV) 1%-25% Polyphenol |
| Cranberry Extract | 1%-25% Anthocyanidins (UV) 1%-60% Proanthocyanidins (UV) |
Aronia Chokeberry Extract | 1%-25% Anthocyanidins (UV) 1%-36% Anthocyanin (HPLC) 1%-60% Proanthocyanidins |
| Purple Corn Extract | 1%-25% Anthocyanidins (UV) 5:1, 10:1, 20:1 |
Roselle Extract | 1%-25% Anthocyanidins (UV) |
| Mulberry Extract | 1%-25% Anthocyanidins (UV) 1%-36% Anthocyanin (HPLC) |
Raspberry Extract | 1%-25% Raspberry Ketone |
| Purple Potato Extract | 1%-10% Anthocyanidins (UV) | Cherry Extract | 1%-25% VC |
| Lingonberry Extract | 1%-25% Anthocyanidins (UV) 1%-60% Proanthocyanidins (UV) |
Black Bean Hull Extract | 1%-15% Anthocyanidins (UV) 1%-30% Anthocyanin (HPLC) |
| Grape Seed Extract | 95% Proanthocyanidins (UV) | Grape Skin Extract | 1%-50% Resveratrol 1%-15% Anthocyanidins (UV) 1%-40% Proanthocyanidins (UV) 1%-50% Polyphenol |
| Item | Specification | Result | Method |
|---|---|---|---|
| Marker Compounds | Oligomeric proanthocyanidins ≥ 75% | 87.82% | HPLC |
| Polyphenols | Polyphenols ≥ 70.0% | 86% | UV |
| Physical Characteristics | |||
| Appearance | Powder | Conforms | Visual |
| Color | Brown | Conforms | Visual |
| Taste | Characteristic | Conforms | Organoleptic |
| Particle Size | 95% through 80mesh | Conforms | CP2020 |
| Reactor density (Bulk) | 0.30~0.60g/ml | 0.3127g/ml | CP2020 |
| Reactor density (Tapped) | 0.40~0.70g/ml | 0.4874g/ml | CP2020 |
| Loss on Drying | ≤ 5.0% | 2.81% | CP2020 |
| Ash | ≤ 5.0% | 0.78% | CP2020 |
| Physicochemical Indexes | |||
| Total heavy metals | < 10 mg/kg | Conforms | CP2020 / ICP-MS |
| Pb | ≤ 1mg/kg | 0.032ppm | ICP-MS |
| As | ≤ 1mg/kg | 0.041ppm | ICP-MS |
| Hg | ≤ 1.5mg/kg | ＜0.005ppm | ICP-MS |
| Cd | ≤ 0.5mg/kg | ＜0.005ppm | ICP-MS |
| Total colony count | ≤ 1000cfu/g | < 10cfu/g | GB 4789.2 |
| Total Yeast & Mold | ≤ 100cfu/g | < 10cfu/g | GB 4789.15 |
| E.Coli | Negative | Conforms | GB 4789.3 |
| Salmonella | Negative | Conforms | GB 4789.4 |
| Weight | Packing Method |
|---|---|
| 1 kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10 kgs, 25 kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1kg - 25kgs | EMS, DHL, UPS, Fedex | 3 - 7 days | Door to door |
| 25kgs - 100kgs | DHL, FedEx, by Air | 3 - 7 days | Door to door (to Airport by Air) |
| more than 100kgs | by Air | 3 - 7 days | Door to Airport |
| by Sea | 10 - 35 days | Door to port |
The primary active compounds are Proanthocyanidins (OPC), especially Proanthocyanidin B2. Our extract features a high standard active content exceeding 95% of Proanthocyanidins (UV).
The Oligomeric Proanthocyanidins (OPC) found in grape seeds are exceptionally powerful antioxidants. Their antioxidant capability is significantly stronger than Vitamin C and roughly 52 times stronger than Vitamin E.
Our natural extraction process is free from chemical additives. Complete ISO, Halal, and Kosher certifications are fully available for our extract products.
It is highly versatile and widely applied in the pharmaceutical industry (cardiovascular health), health supplement products (capsules), food production (nutritional enhancer and natural preservative), and cosmetic formulas (skin refirming and wrinkle-reduction creams).
For small quantities, we pack in 1kg double-layered plastic bags inside aluminum foil bags, boxed externally. For bulk orders of 10kg, 25kg or more, we package using durable drums or cartons with double-layer plastic inner linings.
Yes, we support complete quality testing. We provide both Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS) documents to guarantee standard specifications for bulk purchasing and sample validation.
