100% pure, organic Reishi powder, for strengthening your immune system, your cholesterol and it helps you sleep better. Reishi is a mushroom and one of the most widely used medicinal and healing mushrooms used in Asia. Reishi is nicknamed in China "long-lived mushroom" or "king of herbs" because of its benefits on your health. The Reishi mushroom originates in the mountainous forests of Asian countries such as China, Korea and Japan. The habitat of this particular mushroom is usually at the base of a hardwood tree, in humid conditions. Moreover, the Reishi mushroom needs a lot of shade. Benefits of the reishi mushroom Reishi has a strengthening effect on the immune system because it allows your body to better produce white blood cells that in turn target and eliminate viruses in your body. Reishi can be used effectively for long-term fatigue. Usually an 8-week course of treatment is sufficient to see noticeable differences in your energy level