#1 selling probiotic strain worldwide!† Shop Now ->
5 Reasons Why People are Loving This Doctor-Recommended Probiotic*
By Jane C.
Last Updated January 13, 2026
Read this BEFORE you buy another probiotic supplement!
TLDR: The proprietary probiotic strain in Florastor Dual Action supports digestive and immune health in several important ways.*
1. Strengthens Immune Health
About 70% of your immune system is in your gut. Saccharomyces boulardii CNCM I-745TM supports the immune system by helping promote the production of Immunoglobulin A (IgA), the primary antibody in the digestive tract that supports a healthy immune response.*
2. The #1 selling probiotic strain worldwide†
Join the millions who trust the #1 selling probiotic strain worldwide† for reliable digestive balance.*
3. Flushes out unwanted bacteria & boosts good bacteria
Unwanted bacteria bind to Florastor Dual Action’s unique probiotic strain and are flushed away, allowing good bacteria to flourish.*
4. Perfect for the Whole Family
From kids to adults - wellness for everyone
Florastor® offers specialized formulations for different needs.
One trusted brand, with multiple solutions for every member of the family.*
5. Trusted by Doctors. Backed by 70 Years of research
Florastor Dual Action is recommended by healthcare professionals and the proprietary probiotic strain Saccharomyces boulardii CNCM I-745TM is backed by over 70 years of research
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.† Based on 2025 IQVIA sales data.
Balances Digestion*
Protects against multiple GI issues*
Improves Digestion*
Destroys Toxins*
Everyday use supports immune health*
Balances Digestion*
Protects against multiple GI issues*
Improves Digestion*
Destroys Toxins*
Everyday use supports immune health*
Balances Digestion*
Protects against multiple GI issues*
Improves Digestion*
Destroys Toxins*
Everyday use supports immune health*
Balances Digestion*
Protects against multiple GI issues*
Improves Digestion*
Destroys Toxins*
Everyday use supports immune health*
Trusted by Families for 65+ Years.
Protect Your Gut.
Power Your Daily Health.
Clinically proven probiotic yeast that survives stomach acid to support healthy digestion and a robust immune system.
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