VSL #3 Capsules (60 caps) *** Shipped in a Cooler with Medical Grade Ice Bricks ***

VSL#3 orders received Monday through Thursday by 4:00 pm ET will ship out the same day in temperature controlled packaging. Orders received after the 4:00 pm ET cutoff time will be processed on the next shipping day.

VSL#3 is optimized to reach the intestinal tract in two unique ways:

1. We use a “cold chain” supply chain, which is a temperature-controlled supply chain comprising refrigerated production, storage, and distribution facilities. We then ship VSL#3 to you in thermally lined, refrigerated shipping boxes. These measures ensure that our bacteria arrive alive and ready to colonize your gut. 
2. VSL#3 is formulated to survive the harsh conditions of the gastrointestinal (GI) tract. In fact, it has been shown to have a 99% survivability rate after 120 minutes in a model of synthetic stomach acid - significantly higher than many of the other products tested.

We’ve been making potent, multi-strain probiotics for over twenty years, and our products are available in over 40 countries. VSL#3 is the #1 gastroenterologist-recommended multi-strain probiotics brand.

The Importance of Potency
Colony-forming units, or CFU, are a unit of measurement used to determine the number of bacterial cells in probiotics. Adequate CFU counts are essential for probiotics to work.

VSL#3 offers some of the highest-potency options available, ranging from 112.5 billion to 900 billion CFU per serving. 

In addition, while some probiotic brands quote their potency based on the bacteria present at the date of manufacture, we guarantee the labeled CFU count of our products at expiration if stored under recommended conditions. This means you get more of what you pay for.

The Importance of Strain Diversity
Research suggests that biodiversity in the gut microbiota can symbiotically promote overall gut health and make the microbiota more capable and resilient, which, as mentioned above, can support multiple health systems.

VSL#3 contains eight complementary strains from three different genera. It has been shown to manage microbial imbalances associated with certain digestive conditions

The Importance of CFU Survival
For probiotics to be effective they need to reach the intestines in sufficient quantities. Once there, they can adhere to the intestinal walls to colonize and interact effectively with your microbiota. This interaction allows them to compete with bad bacteria for adhesion sites and nutrients, produce antimicrobial substances, and modulate the immune system by enhancing gut barrier function and reducing inflammation.

The Importance of Research
Research helps identify and verify the specific health benefits associated with different probiotic strains and formulations, to help ensure that consumers receive products that are both safe and effective. 

We are committed to helping the scientific and medical communities better understand the effects of probiotics on the microbiota and overall health. VSL#3 has been the subject of more than 40 scientific publications in the last five years alone. Researchers turn to VSL#3® because of its potency, eight-strain diversity, refrigerated bacteria, and overall quality.