Shiitake MushroomThis organic Shiitake mushroom extract powder is made from whole fruiting bodies and has been lab tested and verified for both product purity and identity. Lentinula edodes, commonly known as Shiitake mushroom, has been used in Traditional Chinese practices for centuries and is also part of traditional practices in Japan, Eastern Russia, and Korea. The active compound Lentinan, a pure beta 1 3 glucan, was identified by scientist Goro Chihara in the