Protect your body against free-radical damage with the natural flavonoid power of Swanson Pycnogenol! Derived from the bark of the French maritime pine, Pycnogenol is a water-soluble antioxidant flavonoid extract with highly bioavailable procyanidins, catechins, taxifolins and a wide spectrum of phenolic acids. By providing an optimal combination of these valuable flavonoids in a single, concentrated supplement, Pycnogenol helps the body combat environmental stress while protecting vital collagen structures in the blood vessels, skin and joint tissues against the harmful effects of free radicals.