With three potent sources of antioxidants Now Pycnogenol provides serious protection from damaging free radicals. The key ingredient is an extract of pine bark that is one of the richest sources of proanthocyanidins. This is a powerful type of antioxidant that helps protect your body in multiple ways. Additional antioxidant protection is provided naturally by Acercola berry and vegetarian source Rutin. Pycnogenol has been studied and shown to also help maintain strong and healthy heart and blood vessels. Use NOW Pycnogenol to give your heart, and your whole body, the protection you need to stay healthy and strong.