"In Traditional Chinese Medicine, Reishi Mushroom is often referred to as "The Mushroom Of Immortality" and is used to promote the health of the immune and cardiovascular system, liver and to calm the nervous system. It is often viewed as the ultimate anti-stress herb. In fact, it was once said in ancient texts that Reishi would bring happiness and health to all who consumed it. Hybrid Herbs' Duanwood Red Reishi is a 10:1 High Potency Concentrated Extract, which means 10 whole pounds of the Highest Quality Red Reishi Mushroom have been concentrated into one pound of extract for you to consume and enjoy immediately."