High Potency Grapeseed extract (GSE) contains OPCs and stilbenes including resveratrol and viniferins.GSE has demonstrated excellent free radical scavenging activity and provided significantly greater effect than vitamins C, E and beta-carotene. GSE have a great concentration of vitamin E, flavonoids, linoleic acid and phenolic procyanidins (also known as OPC or oligomeric procyanidins). The typical commercial opportunity of extracting grape seed constituents has been for chemicals known as polyphenols having antioxidant activity in vitro.

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