Green Coffee Bean Extract - HSF Nutra

Extraction Method: Solvent Extract

NutraExtract™ Vitis vinifera L.

  • Product Name: Grape Seed Extract/GSE
  • Active Ingredient: Oligomeric Proanthocyanidins (OPCs)
  • Plant Source: Seed of Grape (Vitis vinifera L.)
  • Extraction Method: Solvent Extract
  • CAS No.: 84929-27-1
  • Appearance: Red-orange crystalline solid
  • Shelf Life: 24 months in the unopened original container at room temperature
  • Storage: Store in tight, light-resistant containers at cool & dry place
  • Package: 20kg plastic jugs; outside with paper carton

NutraExtract™ Grape Seed Extract Oligomeric Proanthocyanidins

Grape seed extract is a mixture of polyphenols extracted from the crushed seeds of grapes (Vitis vinifera L). Of the polyphenols, the most active one is oligomeric proanthocyanidin (OPCs), which is a potent natural antioxidant.

Studies have shown that OPC is a more powerful antioxidant than Vitamins C, Vitamin E and β-carotene.

Oligomeric proanthocyanidin cannot be synthesized in the human body, and grape seed extract (GSE) is commonly used as a dietary supplement.

HSF’s NutraExtract™   GSE Grape Seed Extract is a reddish brown fine powder extracted from the seeds of grapes. The product contains at least 95% Oligomeric Proanthocyanidins (OPCs) tested by UV methods.

Main Specification

Odor and taste
Total Flavone Glycoside
Total Terpene Lactones
Ginkgolic Acid
Test method
Loss on Drying
Particle Size
Brown fine powder
Strong and Characteristic
95% through 80 mesh

Why HSF’s NutraExtract™ Grape Seed Extract


100% Natural Source

Extracted from the seed of grapes with better contaminants control.


Wide Product Ranges

Offer a variety of product forms, from granules, powders to oil suspensions.


Strict Quality Control and Assurance

Provide test reports Own lab and third-lab test reports to ensure the quality of the products.


Tailor-Made Service and Technical Supports

Customized service and technical services, to build mutual benefit and win-win business relationship.


Global Recognized Certifications

Manufactured complying with ISO9001, FSSC22000, cGMP, and are certified by IP(NON-GMO), Kosher and Halal.

Video of NutraExtract™ Grape Seed Extract

Things You Need to Know  About NutraExtract™ Grape Seed Extract

What Are OPCs?

Oligomeric Proanthocyanidins, known as OPCs, are compounds found in grape seed extract and pine bark extracts.

  • As indicated by the name, proanthocyanidins are the precursors of anthocyanin, which are water-soluble pigments being responsible for the blue, violet or red color of many flowers and fruits.

  • OPCs are considered one of the most powerful antioxidants your body requires to help protect cells from free radical damage.

What Are the Benefits of Grape Seed Extract as Food Supplement?

Grape seed extract is mainly used as dietary supplement in both EU and US market.

In general, the US market for grape seed extract is more than double the EU market.

Grape seed extract is rich in polyphenols, especially OPCs (oligomeric proanthocyanidins), which is a potent antioxidant.

OPCs are know for its powerful antioxidant performance. Studies show that the antioxidant power of OPCs are “20 times greater than vitamin E and 50 times greater than vitamin C” (Livestrong).

The antioxidants in GSE may help alleviate the oxidative stress, inflammation, and tissue damage that can occur alongside chronic diseases

What Are the Benefits of Grape Seed Extract as Cosmetic Ingredients?

When it refers to GSE, it means Grape Seed Extract  

  • GSE can protect your skin from harmful effects, like sun damage, because of its antioxidant properties. GSE fights against free radicals in our skin directly and help to guard our skin.

  • GSE improves the appearance of our skin. While protecting our skin from sun damage, GSE also makes our skin softer and more elastic by increasing cell turnover and collagen synthesis.

How to Judge the Quality of the Grape Seed Extract?

Water Solubility

As indicated by the name, proanthocyanidins are the precursors of anthocyanin, which are water-soluble pigments, and the soluble performance in water is a way to judge the quality of GSE. The better the water solubility, the better the quality of GSE. The sediments or oils in the GSE solution are usually some impurities or eupolymers that cannot be absorbed by human body.

HSF’s NutraExtract™  GSE can easily dissolve in cold water with less impurities.


In the market, you will find that the colors of Grape Seed Extracts from different suppliers may vary from deep rose to light brownish red. Generally speaking, the lighter the color, the higher the OPCs content, and thus the better the quality.

HSF’s NutraExtract™  GSE is light brownish red, which is the lightest in the industry.

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