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Highly Concentrated, Highly Researched Probiotics

The experts in evidence based probiotic supplements. Our range of supplements deliver high doses of live bacteria to your gut and are trusted and recommended by healthcare professionals worldwide.

9 out of 10 people would recommend VSL#3*

VSL#3 is an award-winning, high concentration probiotic scientifically formulated to keep your gut healthy and support your wellbeing.

High concentrations of 8 bacterial strains have been specially selected for their ability to survive the harsh conditions of the stomach and get to where they are needed most.

Our original formulation, VSL#3, is one of the world's most concentrated probiotics with a whopping 450 Billion CFU (Colony Forming Units) of live, freeze dried bacteria.

THe 8 Diverse Strains contained within VSL3

VSL#3 & Fibre both contain 8 diverse bacterial strains, offering great bacterial diversity as well as potentcy. These strains have been carefullly selected and extensively researched.

Proven to reach the gut alive

VSL#3's live bacteria has been scientifically proven to survive the harsh conditions of the digestive system and reach the gut alive. Once there it reproduces to replenish your gut microbiome.

But don't just take our word for it...

Really helpful for keeping pathogenic bacteria in check. These have helped me more than antibiotics.


Gemma T.

I was initially recommended (VSL#3) by my gastroenterologist... this product has had a beneficial effect with my digestive pains now gone.

Linda H.

I’ve been taking these every day for the past couple weeks and I’ve never felt so good!


Hannah K.

I feel this is the best probiotic I use


Stuart G.

I felt a real improvement after taking it for one month. It has eased my gut problems


Ioanna V.

Featured Products

Take a look at the rest of the VSL# Family

The VSL#Fibre Range

High-fibre synbiotic relief from constipation

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Whether you sprinkle it, shake it or stir it

Take your VSL# YOUR way!

Chipotle Gazpacho gut health recipe image

Chipotle Gazpacho

Probiotic Double Chocolate Cheesecake gut health recipe

Probiotic Double Chocolate Cheesecake

coffee smoothie gut health recipe

Coffee Smoothie with Blueberries

*Based on the total 109 responses to the onsite customer survey July 2023