USDA Dietary Supplement Super Pure Certified by Oregon Tilth SuperPure Grape Seed is the first truly certified , fully standardized extract of its kind--and developed exclusively by The Synergy Company. Just one capsule daily provides 150 mg of Proanthocyanidins and 250 mg of Polyphenols for genuine whole body nourishment and protection. Our SuperPure process safely captures the whole spectrum of grape seed and skin's most valuable compounds. Discover our one-of-a-kind extract to support your healthy heart, eyes, skin, blood vessels, and much more.