Maitake mushroom has been found to be one of nature's most potent and effective immune support nutrients. It contains a unique protein-bound. Beta-1, 3/1, 6 glucan, D-fraction, which has been tested and found to be the strongest among many of the most powerful immune boosters. D-fraction may increase numbers of immune cells, and improve overall functioning on the immune system. Maitake D-fraction is most potent in enhancing the immune system, demonstrating highest cancer inhibition in oral administration. It has a strong ability to potentiate and activate the cellular immune system. ***** 2Fl Oz******