Reishi Mushroom, also known as "Ling Zhi" in traditional Chinese practices, has a long history of use dating back more than 4,000 years. Often referred to as "mushrooms of immortality" in many Asian cultures due to their wide array of health benefits. Today, the western world has turned its attention to the reishi mushroom. With several molecules that may contribute to its effect on health (triterpenoids, polysaccharides, and peptidoglycans), reishi mushrooms may help support healthy immune system function, cardiovascular function, cognitive function, energy and mood, and more! Like all Solaray products, Reishi Mushroom is lab verified for potency, purity, and identity.