Klaire Labs ABx Support is a hypoallergenic blend of 4 probiotic species in a base of inulin. A carefully researched blend of the non- pathogenic yeast Saccharomyces boulardii with Lactobacillus rhamnosus, Bifidobacterium bifidum, and Bifidobacterium breve, each capsule provides 10 billion CFU protected by our proprietary InTactic® technology for maximum viability throughout the intestinal tract. It is commonly used during an antibiotics treatment or after it.