SFI Health Ther-Biotic Saccharomyces Boulardii Powder 4.48 oz (127g)Klaire SFI Ther Biotic Saccharomyces Boulardii Powder supports gastrointestinal health. Should be taken with beverages or meals. This powder formulas may be mixed iwth semi solid foods such as applesauce or beverages. Avoid the use of hot foods or beverages as this may affect the potency and activity of the supplement. S. boulardii does not colonize the human intestinal tract and is not one of the microorganisms that normally inhabit the intestines.