New Roots Herbal Reuteri Restore Bowel-Balance Probiotic - Each enteric-coated capsule delivers 2.5 billion live, active, colony-forming units of bowel-balancing Lactobacillus reuteri to restore favorable gut flora and support immune function. Lactobacillus reuteri is among the pioneer probiotics to populate the infant’s gut. It colonizes primarily within the intestinal mucosa of the colon. L. reuteri colonization may decrease over time, and the once-prominent strain can dwindle in numbers due to multiple factors which may include a poor diet, environmental toxins, stress, and frequent antibiotic use. Enteric coating protects the fragile microorganisms from harsh stomach acid and guarantees their survival so they can arrive in your intestines alive and viable.