* Dietary Supplement * Billions of Organisms Guaranteed at Time of Manufacture * High Potency * A High Potency Proprietary Blend Designed to Maintain Healthy Intestinal Flora A proprietary blend of the most beneficial known strain of Lactobacillus Acidophilus, synergistically combined with three other genetically distinct probiotic organisms and the prebiotic Fructooligosaccharide (FOS), is designed to aid in the maintenance of probiotic activity in the intestine. Acidophilus Probiotic Blend contains over 1 billion viable cells at the time of manufacture.