For us, potency isn't a number - it's a principle. Every VSL^Probiotics formulation isdeveloped with meaningful levels of live bacteria, manufactured under controlledconditions, and verified to maintain the labeled CFU count through expiration whenstored as recommended.Potency matters because probiotic function depends onboth the quantity and vitality of live organisms that reach the gut. Even modest lossover time can affect performance, which is why every VSL^ Probiotics product isdesigned and tested to deliver consistent strength from first dose to last.

For probiotics to work, live microorganisms must survive both storage and digestionto reach the gut intact. Every VSL^ Probiotics formulation is developed with this inmind - combining carefully selected strains, stability-enhancing formulation design,and packaging to maintain viability from manufacturing through expiration.VSL#3^ ismaintained under strict cold-chain conditions - refrigerated throughout production,storage, and shipping - to help preserve live strains at their intended strength.VSL4^ products are shelf-stable and formulated with acid-resistant capsules that helpprotect probiotic bacteria until they reach the intestinal tract.

Our formulations are grounded in science. Each strain is selected for its documentedcharacteristics and ability to contribute meaningfully to a balanced microbiome. Thisapproach draws on years of probiotic research - building on well-studiedformulations and evidence-backed strains to create products designed for specificmicrobiome needs.Across the VSL^ Probiotics family, every formulation follows thesame principle: science guides each step, from strain selection to finished product.This consistent, evidence-based process ensures reliability and quality across thebrand's entire portfolio.

VSLR Probiotics builds on the legacy of VSL#3^ - a formulation long trusted byhealthcare professionals for its quality and reliability. That foundation continues toguide how we develop every product in the VSL^ Probiotics family. Our focus remainsthe same: to create formulations grounded in evidence, crafted with precision, andrespected for their consistency - not driven by trends, but by trust earned throughexperience.