What our customers say
In short
Natural Probio is rated 4.8 out of 5 on Trustpilot, in verified reviews. Reviews keep coming back to the same points: cultures that arrive in good shape and work from the first try, clear instructions for beginners, fast dispatch and a team that replies quickly when something needs sorting. The reviews below are real, quoted as written or translated where marked.
We would rather let customers speak than describe ourselves. These reviews were left on Trustpilot or on our product pages. Some were written in English; others were written in another language and are translated here, marked as such. Where we have shortened a review, you will see "[…]"; we never change its meaning.
What do the numbers look like?
What do kombucha customers say?
"Highly recommended! I recently purchased the culture kits for both water kefir and kombucha, and I couldn't be happier! The package arrived right on time and was packed with so much care. To be honest, I was a bit nervous at first, but the instructions are incredibly clear, thorough, and easy to follow (the included booklet is an amazing guide if you're a beginner like me!). Both cultures worked perfectly on the very first try, and the drinks taste absolutely delicious."
Elisa, June 2026Trustpilot review, water kefir and kombucha"I ordered kombucha SCOBY and water kefir grains and when the package arrived, a part of the kefir was missing. Client service was very quick at sending me the missing item. Both grains and SCOBY are producing great drinks."
Juliette M., June 2026Trustpilot review, SCOBY and water kefirJuliette's experience shows how our guarantee works in practice: a missing item, a quick email, and a replacement sent without any return. How our guarantee works.
What do they say about delivery?
"Fast shipping. The product is superb."
Elli S., August 2025Trustpilot review"Both the delivery and the quality of the product, great! My milk kefir grains are super active […]. Totally recommended."
Montse AJ, October 2026Trustpilot review, translated from Spanish"The water kefir was delivered straight away and yesterday I drank my first homemade kefir. I'm simply thrilled!!!! I'm having such fun with it, because it turned out sooo delicious."
Sunny, September 2026Trustpilot review, translated from GermanWhat do they say about our team?
"We had a question about activating the kefir and got a helpful, courteous reply straight away."
Wibke S., October 2025Trustpilot review, translated from German"After a few problems at the start, the advice the seller gave me helped my kefir grains become active again. […] I'm enjoying the drink of my childhood."
Jean-Marc, December 2021Review on the product page, translated"Good customer service. Very happy with my milk and water kefir pack, and they're glad to advise on any question. I recommend it to everyone."
Irene M., July 2026Trustpilot review, translated from SpanishWhat do they say about the cultures themselves?
"Good product, does exactly what it should."
Ronald K., October 2026Trustpilot review, translated from German"Very good goods. I'm already setting up my 3rd kefir and I drink it every day."
Matthias L., August 2024Trustpilot review, translated from German"Great brand"
Michail P., July 2026Trustpilot reviewWhat do these reviews have in common?
Read them together and three things stand out. First, the cultures work: customers describe drinks that turned out well from the first attempts. Second, beginners feel looked after, thanks to a guide that is clear and a booklet that answers the obvious questions. Third, when something goes wrong, whether a missing item or a slow start, our team steps in quickly and puts it right. That is exactly what we want every new customer in the UK to experience. If you would like to see reviews grouped by situation, have a look at reviews by kind of brewer.
Questions about reviews
Are these reviews genuine?
Yes. They were left on Trustpilot or on our product pages. Translations are marked, and shortened passages are shown with "[…]".
Where can I read every review?
On Trustpilot, where Natural Probio is rated 4.8 out of 5. The link is in the figures above.
Why are some reviews about kefir?
Natural Probio also offers water kefir and milk kefir grains, and the comments on delivery, guides and service apply across the whole range, the SCOBY included.


Start brewing your own kombucha
A live kombucha SCOBY with its starter liquid, the guide and the recipes, from a brand rated 4.8 out of 5.
- Live and active on arrival
- Step-by-step guide and exclusive recipes
- A team that answers quickly
- Satisfied or your money back
Lifetime guarantee on your culture's activityDelivery across the UK, with trackingMoney-back guaranteeSCOBY from time-honoured methods, unique and resilient


