Resveratrol supplements help support cardiovascular and brain health, and shield against oxidative stress. The problem is ordinary resveratrol has low bioavailability. Optimized Resveratrol Elite™ combines a highly bioavailable trans-resveratrol (the form of resveratrol found in grapes and Japanese knotweed) with an enhanced-bioavailability form of the plant polyphenol quercetin for heart and immune support.