HealthAid ImmuProbio is a unique formulation containing a superior blend of 50 billion viable bacterial strains, including the DDS-1 super strain, backed by 40 years of clinical research and fortified with a prebiotic (FOS), to help replenish the body's good bacteria and maintain a healthy immune system*. HealthAid uses special acid & bile resistant strains, which prevent the stomach juices destroying the ingredients before they reach the intestines, ensuring their purity and potency*. Non GMO, Free from Gluten, Wheat, Corn, Soy, Nuts, Eggs, Dairy, Artificial Colors, Preservatives & Flavorings