Antioxidant Support, Cardiovascular Support, General Wellness, Immune System Support. Our Resveratrol is a proprietary blend of Japanese Knotweed (Polygonum cuspidatum) and Red Wine (Vitis vinifera) extracts. The natural polyphenols found primarily in Knotweed root and grape skins are considered to have significant antioxidant properties. This potent combination provides valuable antioxidant protection necessary for healthy circulation, balanced metabolism, normal blood sugar levels, proper inflammatory responses, and even radiant skin. It also supports cellular health, critical to the natural aging process, by promoting the recycling of NAD+. Moreover, studies have demonstrated that resveratrol activates SIRT I genes, which mimic the the healthy aging effects of moderate caloric restriction.