Est. 1967 2 Billion Cfu Per Serving Digestive Health Dietary Supplement Gluten Free Soy Free Mason Guarantee Laboratory Tested cGMP - Certified Good Manufacturing Practice Mason Natural Chewable Probiotic Acidophilus and Bifidus provides 2 billion Cfu per serving to help support digestive balance and gut microflora. This probiotic supplement features a carefully selected blend of Lactobacillus acidophilus and Bifidobacterium bifidum, two strains commonly found in a healthy intestinal tract. These live cultures are known to support digestive comfort and maintain microflora balance in the gut. Our delicious strawberry-flavored wafers make it easy to incorporate probiotics into your daily routine. Cfu - Colony Forming Units