NOW^® Probiotic-10™ offers a balanced spectrum of live organisms consisting of acid-resistant probiotic bacterial strains that are known to naturally colonize the human GI tract.* Probiotic bacteria are critical for healthy digestion, help maintain the integrity of the intestinal lining, support proper intestinal motility and participate in the detoxification process. Probiotic-10™  utilizes bacterial strains that have been clinically validated for their support of healthy immune system function.