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What's Grape Stem
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  • Grape Stem Extract Technical Data Sheet

Common Name:

Certificate Available:

Scientific Name:

Part Used:



Grape Stem Extract


Vitis vinifera L.


Resveratrol 5% HPLC


  • Grape Stem Extract Data Download

  •  Certificate of Analysis 

  •  Specification Sheet 

  •  Material Safe Data Sheet

  • Third Party Lab Test Report

  • What's Grape Stem Extract 

Grapes have been heralded for their medicinal and nutritional value for thousands of years. Grape stem extract is extracted from the stems of Vitis vinifera which contains natural resveratrol. It also provides cardiovascular protection by preventing oxidation of lipoproteins.


Resveratrol is a naturally occurring phytoalexin produced by some higher plants in response to injury or fungal infection. Phytoalexins are chemical substances produced by plants as a defense against infection by pathogenic microorganisms, such as fungi.


Model No.: GRS   

Product Name: Grape Stem Extract Powder

Botanical Name: Vitis vinifera L.


1. Resveratrol 5% HPLC

2. e-Viniferin 0.5% HPLC



1) Anti-oxidation, reducing the production of free radical and preventing skin from UV radiation.

2) Invigorating the liver and benefiting the kidney.

3) Anti-cancer, lower blood pressure and nourishing the blood.

4) Reducing blood sugar and cholesterol and having the great effect to prevent hypertension.

5) Accelerating skin regeneration, anti-aging and making skin be soft and elastic.


Assay: Resveratrol 5% by HPLC

Appearance: Brown Powder

Particle Size: 100% through 80 Mesh

Loss on Drying: < 5.0%

Heavy Metals: < 20ppm

Arsenic(As): < 2ppm

Lead(Pb): < 2ppm


Total Plate Count: < 10,000cfu/G

Yeast & Mold: < 1,000cfu/G

E.Coli.: Negative

Salmonella: Negative


a. The raw material is 100% natural, no additive added during products. Huge stock for the raw material, and finished products.


b. Full specifications, we can supply all the specifications.


c. Our special advantage is to produce goods conformed to the European market. European market is our main market, and we enjoyed a good reputation in Europe. Our heavy metals(As, Pb, Cd, Hg), Microbiology, Pesticide, etc. are well controlled.


d. Equipped with the most advanced extraction unit, and HPLC, UV, GC, AA. We are also in cooperation with many third party LAB to control the goods, such as SGS, PONY, CHROMADEX, etc..