Swanson Saccharomyces Boulardii with Prebiotic MOS provides 5 billion CFU of probiotic yeast per capsule to support digestive health and immune function. Its acid-resistant, shelf-stable formula ensures maximum effectiveness, while prebiotic MOS enhances beneficial gut bacteria. Vegan, gluten-free, and non-GMO, this supplement is ideal for maintaining gastrointestinal balance, especially for travelers.