Our prebiotic and probiotic supplement contains a blend of 40 billion CFUs (colony-forming units) of lactobacillus acidophilus, lactobacillus plantarum, lactobacillus paracasei, and bifidobacterium lactis along with astragalus and a Fructooligosaccharides (FOS) prebiotic. This ...Our prebiotic and probiotic supplement contains a blend of 40 billion CFUs (colony-forming units) of lactobacillus acidophilus, lactobacillus plantarum, lactobacillus paracasei, and bifidobacterium lactis along with astragalus and a Fructooligosaccharides (FOS) prebiotic. This unique combination was developed to provide upset stomach relief and regulation thanks to its ability to help modulate the gut flora.