Pau D' Arco Extract (Tabebuia impetiginosa) is derived from the bark of the large tropical evergreen tree from Central & South America. This extract is loaded with powerful components to stimulate the immune system, such as flavonoids, anthraquinones, alkaloids, napthaquinones and quercetin. This is the highest quality Pau D' Arco Extract available on the market in raw, powder form. This ingredient may be added to foods and beverages or smoothies and green drinks. It is a tannish-brown powder.