Nature's Life, Reishi Mushroom, 100 CapsProduct Description Reishi is a traditional Chinese tonic, known as Ling Zhi. It is used to nourish, tonify, and supplement the whole body as it removes toxins and disperses accumulation. It calms and nourishes the nervous system, strengthens the lungs, protects and stimulates the liver and helps the body adapt to stress. Considered among the most powerful natural healing herbs in Asia, Red Reishi was very rare and expensive to obtain until recently.