Woman holding Florastor saccharomyces boulardii probiotic capsules

The One Probiotic Strain You Need: Saccharomyces boulardii CNCM I-745®

Not All Probiotics Are Created Equal 

If you’ve ever stood in the supplement aisle overwhelmed by countless probiotic options, you’re not alone. The probiotic world is crowded with different strains and sky-high CFU counts, but here’s the truth: more isn’t always better. What really matters is the right strain at the right level—and one stands out from the rest. 

Meet Saccharomyces boulardii CNCM I-745, the clinically studied probiotic strain that actually works with your body instead of just adding more bacteria to your gut. But here’s what’s critical to know: not all Saccharomyces boulardii strains are the same. Only one has been rigorously studied and proven effective—Saccharomyces boulardii CNCM I-745, found exclusively in Florastor. 

 

What Makes Saccharomyces boulardii CNCM I-745 Different? 

Unlike many other probiotics made from bacterial strains, Saccharomyces boulardii is a beneficial yeast with unique properties that help balance and strengthen your gut microbiome. But not all Saccharomyces boulardii strains are created equal—only Saccharomyces boulardii CNCM I-745 has been clinically studied in over 130 trials and proven to deliver real, lasting gut health benefits. 

Here’s what sets it apart: 

 

It Helps Flush Out Unwanted Bacteria 
Saccharomyces boulardii CNCM I-745 actively binds to unwanted bacteria, helping to remove it naturally from your digestive system. Think of it as a gut guardian, keeping the bad bacteria in check while letting the good bacteria flourish.* 

 

It Supports Your Own Good Bacteria 
Most probiotics simply introduce new bacteria into your gut. But Saccharomyces boulardii CNCM I-745 takes a different approach—it nourishes and enhances your body’s natural gut bacteria to create a thriving environment for better digestion and overall well-being.* 

 

It Strengthens Your Gut Barrier 
Studies show that Saccharomyces boulardii CNCM I-745 stimulates the production of IgA, an important antibody that protects your intestinal lining and helps maintain a strong gut barrier.* A healthy gut lining is essential for nutrient absorption, digestion, and overall immune function. 

 

It Strengthens Your Immune Health 
Did you know that 70% of your immune system resides in your gut? A balanced gut microbiome plays a crucial role in immune defense. Saccharomyces boulardii CNCM I-745 helps support immune function by maintaining gut integrity and stimulating protective immune responses. By reinforcing the gut barrier and promoting a healthy microbiome, this powerful strain ensures your immune system is ready to tackle daily challenges.* 

 

Infographic describing how saccharomyces boulardii supports gut health by boosting your natural good bacteria, helping flush out unwanted bacteria, strengthening your gut barrier, and strengthening your immune system

 

The #1 Selling Saccharomyces boulardii Probiotic Worldwide 

 

Many probiotic brands claim to contain Saccharomyces boulardii, but unless it’s Saccharomyces boulardii CNCM I-745, you’re not getting the strain that’s been studied and trusted for decades. Only Florastor contains this powerful, clinically validated strain. 

 

Why Choose Florastor®? 

 

Clinically studied in over 130 trials for proven efficacy 


Survives stomach acid to deliver real results where needed 


Works for your unique microbiome—not just a temporary fix 


Over 20,000+ Amazon reviews with a 4.59-star rating 

 

Your gut is as unique as you are—so why settle for a generic probiotic? Unlock its full potential with Florastor. 

 

Find Florastor at major retailers like Walmart, Target, Walgreens, CVS and online at Amazon.

 

Picture of Florastor saccharomyces boulardii probiotic packaging