Grape seed extract is a natural plant constituent (polyphenols, including flavanols proanthocyanidin, also known as OPC) which strengthens and protects living tissue. It strengthens blood vessels, improves skin, and aids in circulation. Proanthocyanidins have been sold as nutritional and therapeutic supplements in Europe. It is the principal vasoactive polyphenols in red wine which is linked to a reduced risk of coronary heart disease and to lower overall mortality. Its antioxidant capabilities are more powerful than vitamin C and vitamin E. Poranthocyanidins antioxidant activity plays a role in the stabilization of collagen and maintenance of elastin, two critical proteins in connective tissue that support organs, joins, blood vessels, and muscle.
