TEST VSL#3® Powder
The #1 gastroenterologist-recommended multi-strain probiotics brand.†
VSL#3® 450B CFU Powder is a gold standard in probiotics — trusted in clinical practice by healthcare professionals to help manage serious GI conditions like IBS and ulcerative colitis, and to support long-term microbiome health. In addition to capsules, it is available in a medical food powder.
- Clinically proven for serious GI conditions like IBS, UC, and pouchitis.
- Convenient powder format, each single-serve packet delivers 450 billion CFU — about four times the strength of a capsule — for flexible, high-dose support.
- Backed by 20+ years of probiotic expertise.












Dairy-Free
Soy-Free
Gluten-Free
Non-GMO
Kosher
Halal Certified
Nut-Free
Vegan
For Those Who
Us vs Them
Compare
VSL#3®**
Visbiome®**
CFU per serving (billions)
112.5-900
112.5-900
# of strains
8
8
Refrigerated
Yes
Yes
Medical Food
Yes
Yes
Dairy Free
Yes
No
The #1 Gastroenterologist-Recommended Multi-Strain Probiotics Brand†
Yes
No
**VSL#3® is a registered trademark of VSL Pharmaceuticals, Inc.; Visbiome® is a registered trademark of ExeGi Pharma, LLC
Why Doctors Trust VSL#3®

