Grape seed extract

Red brown powder, slight air, astringent taste.
 84929-27-1
 284-511-6
 468.42
 C30H12O6

 Grape seed extract is a kind of polyphenols extracted and separated from grape seed, mainly composed of procyanidin, catechin, epicatechin, gallic acid, epicatechin gallate and other polyphenols.

Antioxidant capacity
Grape seed extract is a pure natural substance, and is one of the most effective antioxidants from plant sources found so far. Tests have shown that its antioxidant effect is 30 ~ 50 times that of vitamin C and Vitamin E.
Active Capacity
Proanthocyanidins have a strong activity, can inhibit carcinogens in cigarettes, free radicals in the aqueous phase of the ability to capture 2 to 7 times than the general antioxidant, such as alpha tocopherol activity more than two times.