Now Beta Glucans with ImmunEnhancer ES supports normal immune cell activity. A bioactive carbohydrate derived from the cell wall of Saccharomyces cerevisiae, commonly known as Bakers' yeast. Beta-1,3/1,6-D-Glucan supports a healthy immune system through its ability to maintain several aspects of the body's normal immune functions. Extra Strength Beta-Glucans is completed with ImmunEnhancer, a high molecular weight polysaccharide extracted from the larch tree that has been studied for its ability to promote a healthy immune response. Recommneded Use: Take 2 capsules 1 to 3 times daily, or as directed by a healthcare professional. Store in a cool, dry place after opening.Now Beta Glucans with ImmunEnhancer ES Facts: 2 veg capsules contains: Beta-1,3/1,6-D-Glucan Powder (from Saccharomyces cerevisiae) 500 mg ImmunEnhancer [Arabinogalactan from Larch Tree (Larix laricina)] 400 mg Other Ingredients: Hypromellose (cellulose capsule), Cellulose, Silicon Dioxide and Magnesium Stearate (vegetable source).