Isoflavones are naturally occurring plant compounds that are particularly concentrated in soybeans. Genistein, daidzein and glycitein are the major isoflavones found in soybeans. NOW&ampreg;&ampnbsp; Extra Strength Soy Isoflavones Vcaps&ampreg; have been extracted through a proprietary process that results in the highest natural levels of Genistein - a quantum&ampnbsp;leap over most soy isoflavone products.