Grape Seed Antioxidant Potent protection against free-radical damage 50 mg Benefits Potent protection against free-radical damage. Key Features Uses Phytosome process for greater absorption and bioavailability. This grape seed extract contains procyanidolic oligomers (PCOs). Using the patented Phytosome process, the grape seed extract in this formula surrounds the water-soluble PCO molecules with fat-soluble phosphatidylcholine molecules. This combination is easily absorbed and highly bioavailable, so more PCOs are delivered to body tissues.