VSL#3® is a high-potency probiotic with 450 billion live bacteria per packet. VSL#3® is a medical food for the dietary management of patients with ulcerative colitis (UC), an ileal pouch (IP), and irritable bowel syndrome (IBS).
Scientific studies have shown that VSL#3:
- Provides probiotic bacteria to help protect the gastrointestinal tract
- Aids in the dietary management of ulcerative colitis (UC), irritable bowel syndrome (IBS) and an ileal pouch
VSL#3® works by colonizing the GI tract with optimal quantities and types of probiotic bacteria. These bacteria adhere to the walls of the GI tract and form a barrier which protects the inner layer of the gut from bad bacteria and other toxic substances that can cause inflammation. Using a high concentration of eight different strains of specially selected beneficial bacteria, VSL#3® produces an optimal composition of good bacteria, delivering relief from symptoms and enhancing the health of the GI tract.
VSL#3® contains the following bacterial strains:
- Streptococcus thermophilus
- Bifidobacterium breve
- Bifidobacterium longum
- Bifidobacterium infantis
- Lactobacillus acidophilus
- Lactobacillus plantarum
- Lactobacillus paracasei
- Lactobacillus delbrueckii subsp. bulgaricus
VSL#3® is intended to be used under the supervision of a physician.
(Manufacturer's Information)
Note to UK visitors: VSL#3® is available on the NHS for the management of irritable bowel syndrome (IBS) in some areas.




















