Pycnogenol® capsules, provided by Douglas Laboratories, supplies 25 mg of a pure, patented pine bark extract from Horphag Research, Ltd. Pycnogenol® is the registered trademark of Horphag Research and is the name given to their patented antioxidant complex produced solely from pine bark which contains a unique mixture of proanthocyanidins (a bioflavonoid), organic acids, and other active compounds. Other proanthocyanidin extracts may want to call themselves ''pycnogenol'', but they can't legally. Pycnogenol® is a unique product recognized by U.S. and international patents covering its innovative methods of extraction, preparation, and biological applications. Pycnogenol® is made exclusively from the bark of the European coastal pine, Pinus maritima, which grows along the Atlantic coast of southern France. The nutrient-rich bark is processed by gentle water extraction through a solvent-free method which recovers all the water soluble components and maximizes bioavailability.