VSL® Probiotics: A Legacy of Science in Every Strain.

Building on the trusted heritage of VSL#3®, VSL®Probiotics now includes innovative supplements like VSL4®, designed for everyday wellness.

  • Trusted worldwide

    A legacy built on trust and expertise.

  • Rooted in science

    Guided by probiotic research.

  • Commitment to quality

    Ensuring potency and reliability.

  • Designed for diverse needs

    Supporting gut and women’s health.

      A Gold Standard in Probiotics

      • A powerful probiotic medical food
      • The #1 gastroenterologist-recommended multi-strain probiotics brand†
      • Ultra-high-potency — guaranteed through expiration when stored as recommended.
      • 8 complementary probiotic strains from 3 different genera.
      • Used in clinical practice and supported by clinical and scientific research.

      Science Over Hype.Purpose Over Promises.

      Built on the legacy of VSL#3®— a probiotic trusted by healthcare professionals and recognized for its scientific rigor — VSL® Probiotics continues to advance microbiome science through targeted, high-quality formulations that support both clinical dietary management and everyday wellness.

      • Committed to Potency

        Potent probiotic formulations guaranteed tomaintain labeled CFU counts throughexpiration.

      • Designed for Viability

        Carefully designed formulations that helpsafeguard live bacteria from production to delivery.

      • Science-Led Strain Selection

        Thoughtfully formulated withcomplementary probiotic strains chosen forfunction and purpose.

      • A Legacy of Expertise

        A probiotic heritage recognized for itsconsistency, credibility, and professionaltrust.

        What Our Customers Say

        • Works Great!

          Really calms my Gut. I'm so thankful mydoctor recommended this product! ltworks well everyday.

          Carol F

        • Best Probiotic ever!

          Can't live without it! Keeps my digestivesystem in its lane and l don't have to beon edge all the time about getting sick...

          Awilda G.

        • Best probiotic ever

          My doctor recommended l should useVSL#3 probiotics. lt has honestlyimproved my quality of life. lt is expensi...

          SHARON R.

        • Wonderful Probbiotic

          This is the only probiotic that works for
          me!

          Daryl R.

        • Miraculous. Everyone should be on this

          The most amazing probiotic on theplanet. Healed my belly when NOTHINGelse would.

          Kelly F.

        • Works Great!

          Awesome product. worked better thanother probiotics l've tried.

          CarV.

          • Dairy-Free

          • Dairy-Free

          • Gluten-Free

          • Soy-Free

            The VSl® Probiotics Difference

            Medical Foods & Supplements

            From medical foods formulated forthe dietary management of Glconditions to supplements for dailywellness, VSL® Probiotics is made tothe highest standards of quality and consistency

            Proven Potency

            Up to 900 billion live bacteria perserving-verified to maintainlabeled CFU counts throughexpiration when stored asrecommended.

            Evidence-Based Formulations

            Formulated with probiotic strainsand combinations supported bypublished research and guided bymicrobiome science.

            Trusted by Professionals

            Rooted in the heritage of VSL#3®_aprobiotic trusted by healthcareprofessionals-VSL® Probioticscarries that same dedication toquality and research into every new
            formulation.

            VSL#3® Benefits:

            A Clinically Studied Medical FoodVSL#3
            ® is a medical-grade formulation supported byclinical research.
            Ultra-High Potency, Guaranteed
            Contains 112.5 billion live bacteria (CFU) per capsulean ultra-high-potency formula designed to keep itslabeled potency through expiration when stored underrecommended conditions.
            Multi-Strain
            8 complementary strains from 3 different genera.

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