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.* This potent Probiotic-10 formula delivers 100 billion live organisms to help restore healthy flora following occasional but temporary disruptions to intestinal balance