Ultimate flora critical care contains therapeutic levels of both lactobacilli and bifidobacterium making it the most complete and effective probiotic supplement on the market each capsule provides 50 billion active cultures from 10 different strains in a once a day serving 30 billion active cultures of bifidobacterium and 20 billion active cultures of lactobacilli and lactococcus ultimate flora critical care also contains fos fructooligosaccharides which is an optimal food sourc