Grape Seed Extract naturally contains polyphenols known as oligomeric proanthocyanidins (OPCs). These active ingredients also exist in many plants and herbs such as green tea, bilberry, and cranberry and are important to healthful traditions around the world.
In addition to being cardio supportive, proanthocyanidin compounds possess antioxidant activity that help fight against free radicals in the body.* Free radicals can cause oxidative stress, which may damage cells.*