Solgar Acidophilus Advanced vegetarian capsules is a non-dairy formulation containing a specially cultivated strain of L. acidophilus (LA-5). Each capsule provides 500 million micro-organisms.This patent guarantees the survival of the micro-organisms in acidic stomach conditions, aiding their incorporation into the intestinal flora.All Solgar Advanced Probiotics use a polysaccharide matrix technology that protects the live bacteria from stomach acid that could destroy them in its path. This matrix is made up of a specially formulated blend that offers protection and nourishment to the microorganisms and improves the stability of the product, with no need for refrigeration (optional). Lactobacillus acidophilus are beneficial microorganisms that naturally reside in the digestive tract.