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VSL#3® is an ultra-high-potency probiotic medical food specifically formulated for the dietary management of irritable bowel syndrome (IBS) and ulcerative colitis (UC) under medical supervision.

Its carefully selected combination of live probiotic bacteria is designed to help maintain a balanced intestinal microbiota.

VSL#3® is the #1 gastroenterologist-recommended multi-strain probiotics brand.¹

Key Attributes

Ultra-high potency: 112.5 billion CFU per capsule.

Multi-strain formulation: 8 complementary probiotic strains from 3 genera.

Guaranteed potency: Labeled CFU count is guaranteed through the best-by date when stored as directed.

Research-driven: More than 50 scientific publications over the past 10 years, including human, in vivo, and in vitro studies.

Dairy-free: Formulated without milk or milk-derived ingredients.

¹ IQVIA ProVoice® Surveys.


Suggested Use / Directions:

Consume as directed by your physician. Usual adult dosage: 1-2 capsules, as needed, up to four times a day.



Serving Size:
2 capsules

Amount Per Serving:

Lactic acid bacteria and bifidobacteria blend — 112.5 billion CFU of live, freeze-dried probiotic bacteria.

Probiotic Strains: Streptococcus thermophilus, Bifidobacterium breve, Bifidobacterium lactis (previously classified as B. longum), Bifidobacterium lactis (previously classified as B. infantis), Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus paracasei, Lactobacillus helveticus (previously classified as L. delbrueckii subsp. bulgaricus)



Other Ingredients:

Vegetable capsule (hydroxypropyl methylcellulose), cornstarch, magnesium stearate, silicon dioxide, stearic acid, microcrystalline cellulose.



Dairy-free: VSL#3® contains no milk
refrigerated upon receipt


Keep VSL#3® refrigerated at 36-46°F (2-8°C). It can be stored at room temperature (77°F) for up to 2 weeks without having a major effect on potency.

Do not use if blue ring is separated from the cap.

VSL#3 is a medical food and is intended to be used under medical supervision. It does not require a prescription.

Please keep this product out of reach of children. Pregnant or lactating women should consult with a physician or healthcare  professional before using this or any other medical food product.

About enhanced testing

Every product on Fullscript meets our high quality standards – but we don’t stop there. Enhanced Testing means select products are pulled directly from Fullscript’s shelves and tested by independent labs, so what’s on the label matches what’s in the product.

Learn more about the testing methods

Enhanced testing

VSL#3® Ultra-High-Potency, 8-Strain Probiotic Capsules (112.5 Billion CFU)

VSL#3

$74.99

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