
VSL#3®
More Than a Probiotic. A Powerful Medical Food.
Pioneers in Probiotics. Leaders inGut Health.
VSL#3® is an ultra-high-potency probiotic medical food - and the #1 gastroenterologist-recommended multi-strain probiotics brand. Developed for people with serious gastrointestinal conditions, it's trusted by healthcare professionals and customers alike for its scientific foundation, clinical credibility,and unwavering quality.
Built on Science. Proven in Practice.
Driven by research - not marketing trends - VSL#3® is trusted in clinical care for the dietary management of specific gastrointestinal conditions. It continues to set the standard for potency, consistency, and reliability in probiotic therapy.
Ultra-High Potency. Guaranteed.
VSL#3® products deliver between 112.5 billion and 900 billion live bacteria per serving, depending on the formulation. Unlike many probiotics that only promise potency at the time of manufacture,VSL#3® guarantees potency through expiration when stored as directed.
Clinically Researched Formulas.Real-World Results.
Each VSL#3® product combines 8 well-characterized probiotic strains from 3 genera to help maintain a balanced intestinal microbiota and support digestive health. The VSL#3® family is specially designed for the dietary management of irritable bowel syndrome (IBS), ulcerative colitis (UC),and pouchitis.
Why Doctors Trust VSL#3®
Clinically Studied and FODMAP Friendly Certified forthe Dietary Management of IBS
In a 2021 clinical study, VSL#3® showed outcomes comparable to those achieved with a low FODMAP diet2 - a commonly recommended but restrictive approach. Because VSL#3® is certified FODMAP Friendly, it can also be used alongside a low FODMAP diet for flexible dietary management.
VSL3® Gut Capsules:Clean Ingredients. Verified Quality.
Free From Common Irritants:
- Dairy-Free
- Gluten-Free
- Soy-Free
- Nut-Free
- No GMOs
- Vegan
Certified for Peace of Mind:
- FODMAP Friendly Certified
It's What's on the Inside
Our unique 8-strain formulation is designed so each strain complements the others,helping maintain a balanced gut microbiota. Billions of live, beneficial bacteria work together to support digestive health.
Why Choose VSL#3®
- #1 GI-recommended multi-strain probiotic; 93% of patients report satisfaction
- 112.5 billion high-CFU live cultures per capsule, more potent than competitors
- Unique 8 strains from 3 genera to ease IBS, bloating and irregular digestion
- FODMAP Friendly Certified, ideal for sensitive guts & low-FODMAP diets
- Thousands of verified 5-star Amazon reviews prove real gut benefits
- Clinically researched formula trusted by gastroenterologists worldwide
- Vegan clean capsules, gluten, dairy & GMO free