Polyphenols Powder, Grape Seed Extract

Polyphenols Powder, Grape Seed Extract

- Product Name: Polyphenols Powder, Grape Seed Extract
- CAS: 84929-27-1
- Appearance: Red Brown powder
- Active Ingredient & Specification: Polyphenol 80%
- Test Method: UV - Grade: Food & Pharmaceutical

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Brief Introduction

Grape polyphenols, called grape proanthocyanidins in foreign countries, are a kind of natural plant polyphenols in grapes, which are abundant in grape skins and seeds.

Grape polyphenols has 50 times the antioxidant capacity of vitamin C and 20 times that of vitamin E! Known as "edible skin care products"! To blain, endocrine, freckle improvement effect is first-rate.

In recent years, domestic and foreign scholars have conducted a large number of studies on GPC, and confirmed that GPC has antioxidant, free radical injury, radiation resistance and cardiovascular protection and other biological activities.

Product NamePolyphenols Powder, Grape Seed Extract
CAS No.84929-27-1
AppearanceRed Brown powder
Active Ingredient & SpecificationPolyphenol 80%
Herb SourceGrape Seeds
Test MethodUV
GradeFood & Pharmaceutical
Particle SizeNLT 99% through 80 mesh

application&function plant extract


- Health Care(Anti-oxidation, Protect Cardiovascular, Anti-cancer, Anti-radiation)

- Comestics Products(Anti-oxidation, Anti-aging, Anti-free redicals)



Polyphenols has multiple phenolic hydroxyl groups, which are easy to be oxidized and release H+, and competitively combines with free radicals and oxides to protect lipids and block free radical chain reactions.

- Cardiovascular protection


Polyphenols can reduce myocardial injury after ischemia in rats and reduce the sensitivity of the heart to ischemia reperfusion injury, which is related to the improvement of plasma antioxidant capacity


Polyphenols has inhibitory effect on the number of peripheral blood white blood cells, immune function, chromosome aberration, DNA damage and other radiation damage caused by acute and subacute 60co-gamma rays, indicating that GPC has good biological activity against radiation, and its mechanism may be related to the elimination of endogenous free radicals generated by radiation and the inhibition of lipid peroxidation.


Polyphenols protects against persistent skin damage caused by herpes simplex virus (HSV).

-Anti- Angioedema

Polyphenols can dose-dependently inhibit rat claw edema caused by carrageenan and ear edema caused by croton oil

-Promote cell proliferation

In 1999, Takahashi[14] reported for the first time that glucophenol extracted from grape seeds can promote the growth of mouse hair epidermal cells in vitro.


STORAGE: Cool & Dry Place, away from strong light and heat

PACKAGE: 10g/one bag

1kg/one bag


Customization according to customers' request.


transportation way




1.   Can I Get Some Samples?

Yes, we supply free samples, and the delivery cost is paid by our clients.

2.    How To Confirm The Product Quality?
Free samples for your kind testing, and warmly welcome you to visit our factory, third-party inspection is also available.

3.   What’s Your MOQ?

MOQ. is different, normally 1kg is good. You can send inquiry to info@prsbiotech.com for confirmation.

4.   How About Delivery Time?
For Stock: 3~5 working days after advance payment or full payment is credited into our bank account.

Customization is according to the production shedule.

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