VSL# UK Reviews 

704
TrustScore 4.5 out of 5

4.4

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Review summary

Created with AI, based on recent reviews

Considering 171 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the VSL#3 product, finding it highly effective for various gut health issues, leading to significant improvements in well-being for both people and pets, often considering its quality superior to other options. Reviewers also frequently highlight the company's efficient service, commending quick delivery and well-packaged orders, especially for cold storage items. However, some customers noted delivery issues, including parcels arriving late, not at all, or left in unsuitable conditions like sun or rain. Several reviewers also expressed concern about the cold chain not being maintained for refrigerated products, with items arriving warm or without sufficient ice packs.

What people talk about most

Product

People report positive experiences with the product, with many finding it effective for improving gut health... See more

Delivery service

Customers generally report positive experiences with delivery service, often highlighting quick and efficient... See more

Quality

Reviewers highlight positive aspects of quality, with many describing the product as amazing and the best on... See more

Service

Reviewers mention positive feedback about service, often highlighting fast, efficient, and excellent service... See more

Order

Consumers find the ordering process to be positive, with many highlighting the ease of placing an order... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I had been giving VSL#3 to my epileptic dog after a recommendation from his neurologist. He is on many drugs but still had multiple seizures every week and terrible stools. After a gut test confirm... See more

Rated 5 out of 5 stars

Everyone suffers with digestive problems sometimes when eating different food on holidays abroad or even in certain restaurants here. A daily capsule of VSL3 stops any problems and is so easy to take... See more

Rated 5 out of 5 stars

Always delivered on quick & on time. Had IBS for over 30 years. Tried other premium probiotics but didn't help. Using VSL & reduced my cheese consumption (excessive!) and now I rarely have any issues.... See more

Rated 5 out of 5 stars

My GP suggested I try VSL #3 following a bout of ischemic colitis 18months ago. I have been using it for 4 months now and will stay using it. It has greatly improved my food intolerance issues. Not cu... See more


Company details

  1. Vitamin and Supplements Store

About VSL# UK

Written by the company

VSL# UK Specialises in high-quality, evidence-based probiotics trusted by healthcare professionals. VSL# Supplements deliver high-concentration's of diverse bacteria to where they're needed most - YOUR gut!

The VSL# range currently comprises of: VSL#3, one of the world's most concentrated and well-researched multi-strain probiotics, and VSL# Fibre. A synbiotic combination of live bacteria and fibre, designed to help restore a healthy bowel and facilitate intestinal transit, providing relief from constipation.


Contact info

4.4

Excellent

TrustScore 4.5 out of 5

704 reviews

5-star
4-star
3-star
2-star
1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 7% of negative reviews

Typically replies within 1 month

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.4

All reviews

(704)

163 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 1 out of 5 stars

In the afternoon of the second day of…

In the afternoon of the second day of taking this I endured the most crippling stomach pains for five hours
I ended up crawling into a ball shape on my bedroom floor as I couldn’t lie down or stand as I was in so much pain
I have not touched the rest since

December 2, 2025
VSL# UK logo

Reply from VSL# UK

We're very sorry to hear that. Unfortunately, as VSL#3 is a food supplement we cannot advise on any specific medical condition and would kindly ask that you consult your healthcare provider.
Everyone's gut microbiome is different so what might work for most people unfortunately doesn't necessarily work for everyone.

Advertisement
Advertisement
Advertisement
Rated 5 out of 5 stars

They work!…

I would not be without these probiotics. They have settled my IBS so I no longer have the cramps and diarrhoea or constipation and feel more in control. Highly recommend them

November 25, 2025
Rated 1 out of 5 stars

This is the FOURTH time I've contacted…

This is the FOURTH time I've contacted you. I booked and paid for tickets for ABBA on 8 January. My tickets do not appear on the App. It says I have no upcoming events. My account number is 1190277813. Please email me at with both explanation and how to retrieve tickets

November 24, 2025
Advertisement
Advertisement
Rated 5 out of 5 stars

I had an outstanding experience with…



I had an outstanding experience with this credit company. The team was extremely professional, helpful, and patient throughout the entire process. They explained everything clearly, offered the best options for my situation, and handled my application quickly and efficiently. I truly felt supported and well taken care of.
Highly recommended to anyone looking for reliable and trustworthy financial assistance!

October 22, 2025
Rated 2 out of 5 stars

Delivery with Royal Mail 48hr tracked…

Delivery with Royal Mail 48hr tracked is appalling! Order placed on a Wednesday evening - tracking said it was being delivered on the Friday so stayed in all day waiting, as well as all day Saturday - yet no delivery! Have had to get it redirected to a post office collection point to ensure it is delivered. Received it on Monday - 5 days after order was placed. These are expensive live probiotics which degrade when left out of the fridge, so 5 days! Very disappointed and now question the quality of the product received which has been purchased for someone who suffers with Crohn's Disease!

November 12, 2025

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.

Learn more about other kinds of reviews.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look