Olympian Labs Grape Seed Extract contains 95% Oligomeric Proanthocyanidin B2-3'-O-gallate.  Oligomeric Procyanidins are a more potent antioxidant than those from pine bark.  Pycnogenols is a generic chemical term used to distinguish the polyphenolic class of bioflavonoids which contain Flavin-3-ols from the simpler bioflavonoids.  These Pycnogenols are also called Oligomeric Procyanidins.  Both these terms refer to the condensed structure of the Flavonol molecule.  Olympian Labs Grape Seed Extract, through a low temperature extraction method, is completely water soluble and free of dangerous solvents and food coloring additives.  Water solubility means optimum bioavailability.