Special Ingredients: Sacch B., Saccharomyces B., Saccharomyces Boulardii, Dairy Free, S. Boulardii. : We strive for optimal health. That's why our Saccharomyces Boulardii probiotics do not contain fillers, excipients, flow agents, or the additive magnesium stearate, which is believed to inhibit nutrient absorption.