Medically reviewed by Melissa Nieves, LND Maitake (Grifola frondosa) is an edible medicinal mushroom and a member of the Grifolaceae family and Polyporales order. It is native to northeastern ...

BLEX 404 is the β-glucan extracted from the dry fruit body of Grifola frondosa (maitake mushrooms), which are native to China, Europe and North America. The safety of the maitake mushroom extract ...