Each capsule contains Lactobacillus acidophilus, Bifidobacterium bifidum & Bifidobacterium lactis. Guaranteed 20 billion potency of the unique, extensively tested LAB4 complex of friendly bacteria per daily intake to end of shelf life if stored correctly. BioAcidophilus contains human compatible strains that are bile and acid tolerant with high adherence ability and a proven history of safe use in humans. Hypoallergenic and dairy-free. Vacuum packed to maintain the stability of these fragile organisms. BioAcidophilus contains Fructooligosaccharides (F.O.S.) derived from chicory.