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.*.