“Research has shown that resveratrol applied to skin seems to have a stimulating and protective effect on glutathione, the body’s master antioxidant.”
Polygonum cuspidatum or Giant Knotweed or Japanese Knotweed owes its antioxidant benefits to its resveratrol content. It is a traditional Chinese Medicine used for circulation and heart health. Resveratrol has been shown to exert an antiinflammatory and antiaging effects in vitro and in animal models. However, these studies had subjects take resveratrol supplements, not use a skin cream containing resveratrol.
Resveratrol is a member of a group of plant compounds called polyphenols. Resveratrol is found in the skin of red grapes, but other sources include peanuts and berries. Most resveratrol capsules sold in the U.S. contain extracts from the Japanese and Chinese knotweed plant Polygonum cuspidatum. Other resveratrol supplements are made from red wine or red grape extracts.
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An Antiinflammatory and Reactive Oxygen Species Suppressive Effects of an Extract of Polygonum Cuspidatum Containing Resveratrol
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