Cardiovascular Health. Powerful Natural Antioxidant. Protects Healthy Cells. One of the most powerful antioxidants found in nature. Grape seed extract is one of the most potent antioxidant found in nature. Rich in antioxidant bioflavoids, it helps reduce cellular damage caused by unstable free radicals. Grape seed has been shown to be more powerful than Vitamin E in neutralizing iron and oxygen free radicals. Natural oligomeric proanthocyanidin complex. Grape seed extract contains a powerful oligomeric proanthocyanidin complex (OPC), which is a class of flavoids with distinct antioxidant properties. Flavoids are a group of compounds found naturally occurring in fruits, vegetables, nuts, seeds, and flowers. Promotes cardiovascular health. Strong antioxidant properties. Protect against free radicals. Supports capillary integrity.