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Review summary

Created with AI, based on recent reviews

Evaluating 225 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the product, highlighting its effectiveness in improving gut health and addressing various digestive issues. Many people have found it to be a life-changing solution, noting significant improvements in their conditions and overall well-being. The delivery service is frequently commended for its speed and efficiency, with products often arriving promptly and well-packaged, maintaining the required cold conditions. However, some customers experienced issues with their orders, including missing items, incorrect products, or delayed deliveries. A few people also reported problems with the packaging, noting that some products arrived damaged or not adequately chilled, raising concerns about the quality of the product upon arrival.

What people talk about most

Product

Clients share positive opinions on product. Many customers praise its effectiveness, with some reporting... See more

Delivery service

Consumers generally express satisfaction with the delivery service. Many praise the quick and efficient... See more

Quality

Customers had positive experiences with product quality. Many reviewers found the probiotics to be effective,... See more

Order

People report ambiguous experiences with their orders. Many customers praise the ease of ordering online and... See more

Service

Reviewers mention positive feedback about service. Customers consistently praise the fast, efficient, and... See more

Reviews shaping this summary

Rated 4 out of 5 stars

It’s a wonderful product but the fact that it needs refrigeration can be a problem. Thankfully, we have good neighbours who put the package straight into our refrigerator. I did think I’d asked for t... See more

Rated 5 out of 5 stars

This probiotic is absolutely amazing, is saving my life for the last year. I have ulcerative colitis plus food allergies it was severe hard life before starting my use. I was suffering with a cons... 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

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


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

699 reviews

5-star
4-star
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1-star

Replied to 4% of negative reviews

Typically replies within 1 month

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Rated 5 out of 5 stars

Everyone suffers with digestive…

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. If the problem is more severe one could take 2 capsules or a sachet dissolved in water. I now have no worries when I travel abroad as Immodium etc is not the answer but VSL3. The service provided by the company is fantastic too.

December 17, 2025
Rated 4 out of 5 stars

It’s a wonderful product

It’s a wonderful product but the fact that it needs refrigeration can be a problem. Thankfully, we have good neighbours who put the package straight into our refrigerator.
I did think I’d asked for the product to be sent to the address we were staying and not our home address. That could’ve been my fault.

December 13, 2025
Rated 5 out of 5 stars

Game changer for my epileptic dog.

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 confirmed he couldn’t process protein and constant bought of diarrhoea I changed his diet to fish based and increased his VSL#3.
Retesting his gut shows a great improvement in diversity etc. 5 weeks later his stools are normal and this is the longest period without a seizure.

December 31, 2025
Rated 3 out of 5 stars

It would be good to know delivery day…

It would be good to know delivery day and time.

December 30, 2025
VSL# UK logo

Reply from VSL# UK

Dear customer, once your delivery has been dispatched you should receive a tracking link from Royal Mail that will allow you to see the status and delivery schedule for your order. If this has not happened please contact our customer service team via the form on our website and they will be happy to help you. Best wishes. VSL# Team.

Rated 5 out of 5 stars

After years of pain this is a life changer

After years of pain, bloating and a plethora of other body reactions in response to foods and drinks; as well as private gastrointestinal tests, investigations and scans, I can honestly say that after taking this product for 3 weeks, my pain threshold has changed from a daily 95% level, to a 50% level. An ultimate life changer for me, and anticipating things continue to improve, in both my physical and my mental health.

December 26, 2025
Unprompted review
Rated 5 out of 5 stars

Amazing Company

My parcel was lost and I had the new parcel within 48 hours. Brilliant service and company. The prebiotic are amazing. Try them, you won't regret it.

December 18, 2025
Rated 4 out of 5 stars

Helps my bloated tummy

This product definitely helps with my bloated tummy issues. Just wish it wasn’t as expensive as not sure I can maintain the cost long term

December 15, 2025
Rated 5 out of 5 stars

VSL#3 great quality

The product is top notch and the price is right - especially for those who have colitis disease or for those who no longer have a large intestine.
I love the packaging/shipping care.

November 22, 2025
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.

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