Herbal Supplement. Certified potency. 100 mg extract per capsule. 95% polyphenols, including oligomeric proanthocyanidins. Vitis spp. A natural antioxidant and a rich source of bioflavonoids, Certified Potency Grape Seed-Power 100 is the highest quality, most potent and most effective form of grape seed extract available. Standardized for 95% (95 mg) polyphenols, including oligomerica proanthocyanids per capsule. Grape Seed-Power 100 offers all the naturally-balanced active principles while retaining and enhancing all the whole-plant synergistic benefits thus making it not only for one of the world's finest and purest plant extracts, but also faster-acting and more assimilable than unconcentrated grape seed. Certified Potency is your guarantee of dependable consistent quality and potency in every capsule every time! Only from Nature's Herbs. Our exclusive FreshCare System inhibits normal plant oxidation, maintaining product potency and extending freshness. It includes all-natural antioxidants in each capsule, oxygen-absorbing packets in each bottle, special air-tight seals and amber glass packaging for uncompromised quality. FreshCare System. Glass recycles. Nature’s Herbs. Put your faith in nature and your trust in nature's herbs.