Dairy Free - Works Throughout the Digestive System. Gluten Free. Researched Formulated and manufactured by Natren. Viable Super Strain Beneficial Bacteria L. acidophilus NAS B. bifidum Malyoth and L. bulgaricus LB-51 to Optimize Digestion Support Absorption and Regularity. Potency Guarantee: Each capsule supplies live active beneficial probiotic bacteria of a minimum of 5 billion cfu of L. acidophilus NAS Super Strain 20 billion B. bifidum Malyoth Super Strain and 5 billion L. bulgaricus LB-51 Super Strain guaranteed through expiration date if kept dry and refrigerated. . The Trenev Process unique oil matrix delivery system keeps beneficial bacteria super strains separate and noncompetitive while optimizing survival through low-pH corrosive stomach acid. Bile resistance is an added feature to ensure 100% survival into the small intestine. This proprietary technology is available only with Natren products.