Non-Dairy Room Temperature Stable MannanOligoSaccharides Provides Enhanced Support to the Intestinal Tract Probiotic Supplement Gluten Free 5 Billion Per Capsule Suitable for Vegetarians/Vegans Strains Matter Saccharomyces Boulardii + MOS contains the probiotic yeast Sacharomyces boulardii, which survives passage through stomach and acid and delivers its benefits to the intestinal tract. This strain helps protect and maintain a normal intestinal microflora. It also works to restore the normal intestinal microflora when possible disruption may occur, such as during travel or the intake of certain medications. MOS (MannanOligoSaccharides) is an oligosaccharide from the cell walls of S. cerevisiae that can discourage bacteria from adhering to the epithelial cells and reduce their proliferation.