Known for it's powerful free radical fighting attributes, ALA is legendary it its ability to prolong the life span and effectiveness of partnering antioxidants, especially vitamins C and E. As one of the leading suppliers of ALA to independent health food stores throughout the country, NOW takes great pride in offering our customers the highest potency ALA available today. And to increase bioavailability, we've added grape seed extract and BioPerine, - two strong synergistic nutrients that have been shown to maximize its absorption while increasing its overall effects.