Grape Pip 500mg 120ct by Pure EncapsulationsPowerful antioxidant and vascular support *Grape pips (seeds) are a superior source of unique flavonoids known as proanthocyanidins or oligomeric procyanidin complexes (OPC). These compounds are among the most powerful antioxidants known in nature, as laboratory studies have shown these compounds to be 20 times more powerful than vitamin C and 50 times more powerful than vitamin E in antioxidant capability. Proanthocyanidins quench several types of