Our Yeast beta-1,3-D Glucan product is a special compound derived ... yeast .( Saccharomyces cerevisiae ). Its chemical structure is long beta 1,6- glucan branched beta 1,3- glucan. It is widely accepted now ... the most potent anti-infective immunomodulator of all species of beta 1,3-glucans. Research indicates that β-1,3-D Glucan ...