Immune Support’s active ingredient is beta 1,3/1,6 glucan, a unique complex carbohydrate purified from Saccharomyces cerevisiae (baker’s yeast). It is natural, not genetically modified (non-GMO), hypoallergenic, patented, and generally recognized as safe (GRAS). Taken orally, Immune Support, without over-stimulating, primes and mobilizes cells in the body’s first line of defense to enhance protection against harmful effects of lifestyle and physical stressors.*