Decades-Old Science Behind Florastor

Back in 1923, French microbiologist Henri Boulard traveled across Southeast Asia. He noticed local people drinking brews made from mangosteen and lychee peels rarely suffered digestive upset.He isolated a special yeast strain from those fruit skins - later named Saccharomyces boulardii CNCM I-745.

This original strain was brought to market by Biocodex in 1953. In 1988, the authentic strain was preserved at Paris Pasteur Institute's CNCM culture bank. Florastor holds exclusive rights to this original strain, trusted across more than 100 countries for over 70 years.

TRUSTED PROBIOTICS

Selling Probiotic Worldwide

Years of Safe Use and Research

Customer Reviews

TRUSTED PROBIOTICS

Selling Probiotic Worldwide

Years of Safe Use and Research

Customer Reviews

Do These Gut Issues Plague You?

Post-antibiotic loose stools, bloating and disrupted gut flora

Sensitive gut: poor diet, late nights & travel cause inconsistent bowel habits

Ordinary probiotics fail - killed by stomach acid or antibiotics

Refrigeration required for most probiotics; easily lose power while traveling

Poor gut immunity, frequent gut discomfort and recurring imbalance

Tired of probiotics that fail to work for you? Florastor delivers a better solution for your gut.

Florastor Is Built To Solve These Common Gut Challenges

Unique yeast probiotic featuring Saccharomyces boulardii CNCM I-745

Safe to take alongside antibiotics to help rebuild your gut flora against antibiotic -caused damage, this strain is highly resistant to stomach acid so it survives digestion and reaches your intestines fully active. Fully shelf-stable with no refrigeration needed, it fits perfectly for travel, work and busy on-the-go lifestyles. Delivering true dual-action benefit it clears unwanted bad bacteria while fueling your body's own native good bacteria, supporting gut -immune balance to ease recurring digestive discomfort.

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Trusted Ingredients

  • Vegetarian

  • Gluten-Free

  • Non-GMO

  • Titanium Dioxide Free

    Florastor's® Mechanism of Action

    Florastor Anti-Toxin, Antimicrobial, & 5 Other Mechanisms of Action Uniquely Beneficial Compared to Bacterial Probiotics.

    • Anti-Toxin

      Florastor produces proteins that degrade and destroy harmful toxins that can lead to water secretion and diarrhea.




    • Anti-Microbial Action

      Florastor helps prevent harmful bacteria from invading the intestinal epithelium by causing the bacteria to adhere to the mannose on its cell walls. And, unlike other probiotics, Florastor does not colonize in the intestines, so those harmful bacteria are then eliminated in the stools.

    • Metabolic Action

      Florastor increases short-chain fatty acids to provide energy to the intestinal epithelial cells which promotes overall gut health.




    • Flora Modulation

      Florastor promotes normalization of the intestinal flora that have been depleted by antibiotics. Florastor is the only probiotic proven resistant to the 16 most common oral antibiotics.


    • Digestive Action

      Florastor increases polyamine levels which promotes the maturation of enterocytes and stimulates the production of digestive enzymes. This enhances the absorption of water and nutrients.


    • Immune Stimulation

      Florastor stimulates the production of IgA, the body's most commonantibody that protects against bacterial and viral infections.



    • Inflammation Protection

      Florastor decreases the secretion of pro-inflammatory cytokines to help protect against gut inflammation.




      Why Choose Florastor® Probiotics

      #1 selling probiotic worldwide

      Saccharomyces boulardii CNCM I-745 is the #1 selling probiotic worldwide and only Florastor contains this unique probiotic.

      70 years of safe use and research

      Since 1953, the benefits of Saccharomyces boulardii CNCM I-745 have been rigorously studied and extensively documented. It has also been safely taken by over 460 million families (and counting) in nearly 100 countries around the world.

      Over 1,000 scientific publications

      Saccharomyces boulardii CNCM I-745 is one of the most studied probiotics in the world having appeared in more than 1,000 publications in over 5 languages.

      Survives stomach acids to reach the gut

      Unlike some bacterial probiotics, Florastor is strong enough to survive the harsh environment of stomach acids to reach the gut which means you don't have to worry about the probiotic's effectiveness.

      Does not permanently colonize the gut

      Florastor does not introduce any other bacteria in your gut, it works with your body to promote your own natural good bacteria. Florastor does not colonize the gut and is naturally eliminated within five days after last consumption.

      • These are very high quality probiotics. They are relatively small, have no associated smell or taste, are easy to swallow and don't upset my stomach. Since I started taking them, I've been more regular and much less bloated. They are a good value for the money.

        RB

      • Comes in a cute little glass bottle, price is great for the amount. can get half as much for the same price at the drugstore. lasts a long time, too. great purchase, favorite probiotics.


        Hannah Duckwall

      • Good stuff!

        I got it for me and my mom and absolutely love it. Actually I'm ready to order a 2nd bottle. Thank you for putting out great product.


        aphrodite

      • Florastot is a great product. I have used it since 2010 when I nearly died from C diff colitis. The infectious disease doctor recommended Florastor probiotic specifically.


        L. Haines

      • This Dual Action Probiotic is a natural way to support my digestive & immune health. I love how it's made with the world's #1 probiotic strain, backed by decades of research. It helps me balance my gut & keeps me feeling my best.

        Nurse Shannan

      • A couple doctors highly recommended me to take Florastor. They said it will help keep C-Diff away. I certainly hope it does. I was impressed that Florastor comes in a glass jar with an excellent tight lid! This should guarantee freshness.

        Kristen

      • Florastor Probiotics for Digestive & Immune Health, 100 Capsules, Probiotics for Women &Men. My husband and I love this probiotic. My doctor told me that this is the best one out there! We have been taking them for years.

        Maureen Sperin

        • These are very high quality probiotics. They are relatively small, have no associated smell or taste, are easy to swallow and don't upset my stomach. Since I started taking them, I've been more regular and much less bloated. They are a good value for the money.

          RB

        • Comes in a cute little glass bottle, price is great for the amount. can get half as much for the same price at the drugstore. lasts a long time, too. great purchase, favorite probiotics.



          Hannah Duckwall

        • Good stuff!

          I got it for me and my mom and absolutely love it. Actually I'm ready to order a 2nd bottle. Thank you for putting out great product.



          aphrodite

        • Florastot is a great product. I have used it since 2010 when I nearly died from C diff colitis. The infectious disease doctor recommended Florastor probiotic specifically.



          L. Haines

        • This Dual Action Probiotic is a natural way to support my digestive & immune health. I love how it's made with the world's #1 probiotic strain, backed by decades of research. It helps me balance my gut & keeps me feeling my best.

          Nurse Shannan

        • A couple doctors highly recommended me to take Florastor. They said it will help keep C-Diff away. I certainly hope it does. I was impressed that Florastor comes in a glass jar with an excellent tight lid! This should guarantee freshness.

          Kristen

        • Florastor Probiotics for Digestive & Immune Health, 100 Capsules, Probiotics for Women &Men. My husband and I love this probiotic. My doctor told me that this is the best one out there! We have been taking them for years.


          Maureen Sperin

          Frequently Asked Questions

          What makes Florastor a great probiotic?

          Florastor is the only probiotic with Saccharomyces boulardii CNCM I-745. This unique probiotic strain works completely different from bacterial probiotics. Instead of introducing foreign bacteria in your digestive system, Florastor works with your gut to boost your own natural good bacteria and help flush out unwanted bacteria.* There are many other unique ways Florastor works to support your gut and immune health. Visit the Why Florastor page to learn more.

          Can I take Florastor with special diets or allergies?

          Florastor is vegetarian and can be appropriate for lactose intolerance. Although Florastor contains lactose, it also stimulates an increase of lactase, a natural enzyme which breaks down lactose for better digestion. Caution remains for individuals genetically incapable of producing lactase. Florastor does not include the risk of exposure to or cross-contamination from any major food allergen or the following ingredients: corn, peanuts, tree nuts, sesame, soy, meat fish, shellfish, egg protein, or gluten. Please note: Florastorkids and FlorastorBaby contain corn.

          How long should I take Florastor?

          Florastor can be taken daily to maintain digestive health. Florastor can only benefit you during days of use. Florastor does not colonize the gut and is naturally eliminated within five days after last consumption. It is recommended to take Florastor for at least 2 weeks.

          Can I take Florastor while pregnant or nursing?

          In the absence of data for use of Florastor in pregnant women, we recommend you consult with your healthcare professional prior to taking Florastor supplements.