Science-backed probiotics,Legacy you trust.Results that deliver.
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A Gold Standard in Probiotics
- A powerful probiotic medical food
- The #1 gastroenterologist-recommended multi-strain probiotics brand†
- Ultra-high-potency — guaranteed through expiration when stored as recommended.
- 8 complementary probiotic strains from 3 different genera.
- Used in clinical practice and supported by clinical and scientific research.
Science Over Hype.Purpose Over Promises.
Built on the legacy of VSL#3®— a probiotic trusted by healthcare professionals and recognized for its scientific rigor — VSL® Probiotics continues to advance microbiome science through targeted, high-quality formulations that support both clinical dietary management and everyday wellness.
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The VSL@ Probiotics Difference
Medical Foods & Supplements
From medical foods formulated for the dietarymanagement of Gl conditions to supplements fordaily wellness, VSL® Probiotics is made to thehighest standards of quality and consistency.
Proven Potency
Up to 900 billion live bacteria per servingverified to maintain labeled CFU counts throughexpiration when stored as recommended.
Evidence-Based Formulations
Formulated with probiotic strains andcombinations supported by published researchand guided by microbiome science.
Trusted by Professionals
Rooted in the heritage of VSL#3®_a probiotictrusted by healthcare professionals-VSL®Probiotics carries that same dedication to qualityand research into every new formulation.
VSL#3® Benefits:
A Clinically Studied Medical Food
VSL#3® is a medical-grade formulation supported byclinical research.
Ultra-High Potency, Guaranteed
Contains 112.5 billion live bacteria (CFU) per capsulean ultra-high-potency formula designed to keep itslabeled potency through expiration when stored underrecommended conditions.
Multi-Strain
8 complementary strains from 3 different genera.







