Keep PowerG-70 purity of Bata-Glucan>=70% Keep Power G-100 purity of CM-Glucan (on dry) >=99.5 Degree of Substitute 0.5-0.75 Yeast Beta Glucan is kind of nature "biological response modifiers",which is derived from the cell wall of baker's yeast (Saccharomyces cerevisiae),comprising D-glucose units with (1,3)links and with side-chains of D-glucose attached at the (1,6) position. The special three ...