Below you'll find our most-recent customer reviews and feedback on the overall OptiBac range, brand and service. These reviews are collected via an external site to ensure unbiased, genuine feedback. Read more about how we collect reviews.

If you'd like to leave a review on one of our products, please visit our online shop.

  • Amazing product

    My son had very bad flu lasting 1 month since then for a year he seems to be weak and very easy catch colds never fully I bought pack for him few month ago /2-4/since then he drastically improved,he is actually healthy...amazing products,,I try 3 differen products and about all I am 100% satisfied.

    Verified Customer
  • What can I say, a miracle worker!!!!!

    What can I say. These probiotics are nothing short of a miracle! I was prescribed augmentin for a bacterial infection and 4 days into the course, I began vomiting and running to the toilet with diarrhoea. I went to the doctors who told me to stop taking the antibiotics, which he described as the domestos of abs! and I hoped that would be the end of my troubles. How wrong I was.
    I flew to the states the next for our much awaited 3 week dream trip to Disney, and to sum the holiday up, it was a rollercoaster of horrendous diarrhoea, urgency, bleeding, heammoroids and an indescribable bloody mucus on a daily basis.
    I’d used optibac products before and was desperate to start them on my return, hoping and praying they would do the trick. I visited the doctor who took stool samples which were normal and they booked me in for a scan.
    I ordered extra strength every day probiotics and within a week my stomach started to improve. Two weeks down the line and it’s back to normal. I’m crossing fingers that this is the end of my problems and I’m so incredibly grateful for these probiotics. THANK YOU, thank you, thank you!!!

    Verified Customer
  • Good delivery service and great product

    Good delivery service and great product

    Verified Customer
  • Optibac for babies

    Purchased Optibac for babies.
    It’s our second purchase. First time ordered 30 but this time ordered 90.
    Both of our young children are on them.
    Help both. I’m pretty sure these sachets have helped keep them free from winter bugs that they normally would never be rid of. So far this autumn/winter the older one has not had an ear infection, which is a big positive.

    Verified Customer
  • Much Better

    After years of problems Optibac has made a significant improvements to my digestion.

    Verified Customer
  • Excellent service and products

    Excellent service by the team whom I contacted on a couple of occasions. I have been using the children’s and babies probiotics for over 3years now and it’s definately made a difference in my little ones.

    Verified Customer
  • OptiBac probiotics

    I found the internet site gave clear information on all the products, my order was dealt with and delivered very quickly. I am very happy with the product I ordered as it appears to be helping stabilise my Ulcerative Colitis and I am now on my second order of Saccharomyces boulardii.

    Verified Customer
  • Great product

    Great product, fast delivery. Will be purcashing again.

    Verified Customer
  • Brilliant

    Brilliant quick service nad these probiotics have really helped.

    Verified Customer
  • So good so far!

    So good so far!

    Verified Customer
Read all 1837 reviews on Trustpilot

Live Cultures reviews

Our live cultures are reviewed through many different channels. Below we compile a list of some popular channels.

Reviewed by industry professionals

OptiBac is reviewed, featured and endorsed by numerous industry professionals. Read on below to see a list of some professionals that have reviewed our products:

Janey Lee Grace

Ian Marber

Kirsty Henshaw

Vicki Edgson

Press and Media mentions

Our products have also been featured by numerous prominent magazines including but not limited to:

How we collect customer reviews


Our product reviews are collected primarily through an open review community called TrustPilot. Using this independent service affords our customers a chance to hear from other real customers who have tried and reviewed our live cultures.

Our product reviews collected through this service are verified to come from real customers meaning they are unbiased and trustworthy.

Our website

We also collect reviews on our products directly on our website. This is a useful way of offering customers who purchase our products from independent retailers (are not verified to have purchased from us directly) a chance to leave feedback and share their success stories.

Using our website, both customers who are verified to have purchased from us directly and customers who may have purchased from other sources can both leave reviews and feedback on their experience with our products. Visit our online shop to review any of our live cultures you have taken.

Older Reviews

Below you'll find the reviews we collected on our website before we started using TrustPilot.

  • As a nutritionist I have been prescribing Optibac Bowel calm to a number of my IBS patients lately and it has proven very successful as a treatment for chronic diarrhoea so I'm delighted with this product and very interested in testing out other products in the future

  • Having suffered with IBS since I was a teenager (approx 30 years) I have tried everything to try and get it under control. Over the last seven months it has worsened, possibly due to stress of two house moves, a relocation and a new job. On the worst days I have been unable to leave the house for fear of not being near a toilet. I read up on probiotics again (I had tried them before but with not much success) and discovered your website. So I thought I'd give them another go and ordered the Bowel Calm and the Daily Wellbeing Extra. What can I say? I am absolutely amazed. They arrived on Friday, on Sunday my husband and I went for a 6 mile walk, something that hasn't been possible for months. I am so glad I have found these products, they really are starting to put an end to years of misery! Thank you.

  • I gave my 6 month old girl Optibac Probiotics for her severe eczema. She had already had two infections and two courses of antibiotics at 4 months and 5/6 months but the second course was taken with probiotics and she has not had a skin infection ever since. Considering the severity of her eczema (two GPs saying it was the worst case they'd seen) this is amazing. She is now 1 and still taking daily sachets of Optibac, her eczema is clear (also thanks to the right steroid cream I should add) and I cannot thank them enough. She is also never ill (touch wood) despite her 4 year old big sister bringing home various preschool bugs. Her immune system has been given the boost it needed and then some - I recommend Optibac to everyone, they think I must be on commission! Thank you once again, and especially thank you to Steve Payne who recommended them in the first place and even purchased our first sachets for us. So grateful.

  • Response from OptiBac

    Thanks for the review Katie, we'll be sure to pass the message onto Steve.

  • My husband and I have used several of Optibac's excellent products. We can recommend Bowel Calm and Well being in particular for helping to keep your digestive system on the right track. I've also taken the Extra Strength versions from time to time when a harder hit of probiotics is needed. We all suffer from an upset tum from time to time, and I've found that taking this great product can nip it in the bud. Things are usually back to normal within two or three days. These are excellent products with an excellent team of advisors behind them. Recommended to one and all.

  • After a course of tablets from my doctor I began suffering from diahorrea to the extent i was worried i had IBS. A friend who promotes organic foods "a little too much" recommended probiotics. After the second tablet of the extra strength ones my bowel movements were back to normal. I claimed co-incidence until 6 months later it cured the same problem again. I am a chartered engineer and not taken in by gimmick tablets. I hate to say it I now swear by these tablets

  • Two of us took them as prescribed and had no problems while in China. 3 days after stopping them I got stomach cramps, lasting for over a week. I later found out that this happened to my friend as well. I wonder to what degree they take over the system and whether there should be a gradual winding down of them.

  • Response from OptiBac

    Hi Dave, were you taking the travel probiotic? I must say that this feedback is completely unprecedented. Generally speaking there is no need to 'wind down' after probiotics, and they certainly should not cause stomach cramps. If you would like to discuss further please call us, 01264 339 770, perhaps we can offer you a different product to try next time. Warm regards, Soraya

  • after years of holiday tummy every time i travelled away from home i tried travla. we holidayed in india & i ate salads,fruit, seafood & everything your recommended to avoid, i have to say my tummy has never been more settled & i felt generally better all round.

  • I also wish these products were available in Australia, but I am happy to order on line to receive them from you. Thanks.

  • Your website is an inspiration, easy to navigate and love the 'latest news' giving up-to-date findings on trials and research. Thank you so very much

  • I am very pleased with your products. I have always had a 'nervous' stomach to go along with asthma and later in life horrible eczema. Many years ago I got serious poisoning from of all things bad potatoes, and since then my life has been truly wrecked by being so ill. I must have ingested kilos of lotomil and loperamide. Even though I do drink litres of water enthusiastically I very often would be in a horrible state of dehydration. Everything seems to get me, many foods, stress and worst of all I have a bad allergy to aspirin and salicylates which is very difficult to get around as they're everywhere. ...I had heard that this probiotic range is good and I just went for it. I really don't buy into the drinks as being that helpful but the information about the products on your website gave me hope. I bought the For daily wellbeing, the For daily wellbeing EXTRA Strength, and For bowel calm. I have taken the EXTRA Strength and the bowel calm so far and am almost euphoric! I am very much looking forward to the new regularity product as it gives me a feeling of saftey to have products I can use if there's an emergency and the extra strength, bowel calm and regularity products should keep even a nervous Nelly like me happy. I feel so good after what was an awful weekend and I just can't stop smiling. ..Thanks for the excellent backup as well as the products. Kean.

  • I really love OptiBac and I really miss it here. There are no substitutes which could compare to it in Australia.

  • My healing practitioner Gabriele A. Franklin recommended to me all kinds of OptiBac products a long time ago. For the last 4 years they have become a firm fixture of every day and I'm satisfied with your high quality products. When I hear about friends on antibiotics, OptiBac's the first word leaving my mouth ;)

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