Grape seed extract

<p><b>Grape seed extracts</b> are industrial derivatives from whole grape seeds that have a great concentration of <a href="http://en.wikipedia.org/wiki/Vitamin_E" title="Vitamin E">vitamin E</a>, <a href="http://en.wikipedia.org/wiki/Flavonoid" title="Flavonoid">flavonoids</a>, <a href="http://en.wikipedia.org/wiki/Linoleic_acid" title="Linoleic acid">linoleic acid</a> and phenolic <a href="http://en.wikipedia.org/wiki/Oligomeric_proanthocyanidin" title="Oligomeric proanthocyanidin" class="mw-redirect">OPCs</a>. The typical commercial opportunity of extracting grape seed constituents has been for chemicals known as <a href="http://en.wikipedia.org/wiki/Polyphenols_in_grape" title="Polyphenols in grape" class="mw-redirect">polyphenols</a> having <a href="http://en.wikipedia.org/wiki/Antioxidant" title="Antioxidant">antioxidant</a> activity in vitro.</p>