Pycnogenol is a natural plant product made from the bark of the European coastal pine, Pinus maritima. Pycnogenol contains 65% procyanidins, a special class of water-soluble antioxidant flavonoids, which are excellent free radical scavengers. Proanthocyanidins are believed to play an important role in maintaining good health. Pycnogenol is a registered trademark of Horphag Research, Ltd. Use of this product may be protected by one or more U.S. patents and other international patents.