Japanese Knotweed Supplements: Best Source of Resveratrol

japanese knotweed supplement flower

Japanese Knotweed is a herb traditionally used in oriental medicine in Japan and China as well as Korea. Often also used as an ornamental plant in gardens in the US and UK, a Japanese Knotweed supplement offers many health benefits. The most useful part of the plant is the root which is usually used dried in powder form in many Japanese knotweed supplements.