No. 1 most studied strain (L. rhamnosus GG strain, PubMed Clinical Trials). Health & Wellness. More clinically studied strains than the leading brand. Supports digestive & immune health. 30 billion live cultures. 12 probiotic strains. New improved formula & smaller capsules! At Renew Life, we are 100% devoted to your well-being. That's why we use more clinically studied strains than the leading brand. We've improved Renew Life probiotics with world-class strains to help your natural rhythms thrive. Inside, you can find: Digestive and immune health support; the no. 1 most-studied probiotic strain (L. rhamnosus GG strain, PubMed Clinical Trials); a non-GMO project verified formula; smaller, easier-to-swallow capsules; and a recyclable bottle. For over 20 years, Renew Life has been a pioneer in gut wellness. We don't compromise on quality. You trust us with your health and we take that seriously, which is why Renew Life Extra Care probiotic guarantees: A formula containing world-class strains backed by science; potency through expiration; a blend of 12 different strains to support digestive and immune health; delayed-release capsules that help the probiotics reach your gut alive; a gluten, dairy and soy-free formula.