Florastor® Dual Action Probiotic Supplement bottle

Florastor® Dual Action Probiotic Supplement Review

Florastor® Dual Action is a daily probiotic supplement that helps flush out unwanted gut bacteria and boost the good. It helps protect against multiple GI issues and supports immune health. It is gluten-free, vegetarian, and non-GMO.

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Product Focus: Digestion and Bloating

Tier ⓘ

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Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →

Evidence ⓘ

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How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.

Positive Reviews

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Biohacker Mentions

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Cost per month

$41

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Study, Trial or Testing Result SummaryMembersHuman studies

This product holds one active ingredient, the probiotic yeast Saccharomyces boulardii strain CNCM I-745, at 1,000 milligrams a day, a dose compared with the 500 milligrams a day that in studies. A review of 42 trials in 3,856 people with irritable bowel syndrome found this exact strain made abdominal pain about one and a half times likely than control, with side . …

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Review Totals and SummaryMembers15,914 reviews

15,914 reviews · Amazon 15,481 · Florastor 229 · Target 204

Florastor® Dual Action Probiotic Supplement consistently receives from real users across a variety of platforms, reflected in its feedback and substantial number of reviews. people who try Florastor® note experiencing with their digestive , often commenting on bloating, regularity, and overall gut comfort after making it part of their daily routine. …

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Biohacker SummaryMembersWhat our biohacker panel says

The common reason is to fight yeast overgrowth, with some saying it break down the film around candida, and others say it with leaky gut, diarrhea, bad bugs, and secretory IgA, a gut immune defense. Two of them tie it to meds, saying to take it daily during and for a weeks after a course of meds, because it stands up to meds than other strains and diarrhea and gut changes. …

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RAL SummaryMembersThe tier and why

Studies of this exact yeast strain, led by a review of 42 trials in 3,856 people with irritable bowel syndrome showing pain , support gut symptoms, and the product supplies a studied dose. Support for bloating also comes from reviews in people taking meds.

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More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Digestive system. Combine with and possible side are for members.

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Supplement FactsSaccharomyces boulardii CNCM I-745® 500 mg

Supplement Facts

Serving Size 2 capsules

Servings Per Container 50

Amount Per Serving% Daily Value

Saccharomyces boulardii CNCM I-745®

500 mg

†

† Daily Value not established.

Other ingredients: Lactose, magnesium stearate, hydroxypropylmethylcellulose (derived from pine bark).

Directions: SUGGESTED USE: 2 capsules 1-2 times daily

Label source: Florastor · Report a label change

Where to BuyFlorastor · Amazon · Biocodex

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We sell no supplements. Prices change; check the store.

Graded October 24, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.