Optimal Probiotic Powder is a unique probiotic formula designed to deliver active organisms shown to promote healthy gut flora, protect intestinal integrity, and boost immune function. Included in this formula is Saccharomyces boulardii, an extensively researched microorganism shown to help restore microflora balance by enhancing commensal organisms. Each scoop of Optimal Probiotic Powder provides seven proven probiotic strains chosen for their ability to withstand the harsh gastrointestinal (GI) environment and adhere to the intestinal tract, and deliver superior results. Also available in capsules at the same high concentration for those who prefer capsule delivery.