At Bio-Pro, the Mycology division of Nature's Answer, we maintain a strong emphasis on supplying professional-grade, premium quality, nutritional mushroom formulas, defined by the highest level of efficacy and benefits for our customers. Direct from the source, our products are 100% formulated and produced in our own, Usa, state-of-the-art,botanical manufacturing and Gmp registered, quality-controlled facilities. Bio-Pro Maitake Bio-Beta-Glucan is produced from the finest sustainably cultivated organic maitake fruiting body.