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.


  • Good quality

    Good quality, great service. Prompt.

    Verified Customer
  • Best supplements I have ever used!

    Best supplements I have ever used!

    Verified Customer
  • Excellent service

    Excellent service, next day delivery

    Verified Customer
  • Great product and a great company

    Great product and a great company - always easy to deal with & quick delivery too 😀

    Verified Customer
  • Fantastic product, superb service!

    I have used this company on many occasions and will continue to be a customer. The product is top quality and despatch is very efficient, delivery within a couple of days of ordering.

    Verified Customer
  • Excellent website

    Excellent website. Swift ordering process. Let's hope they work!

    Verified Customer
  • These probiotics are the best in the…

    These probiotics are the best in the world.

    Verified Customer
  • Service always excellent

    Service always excellent. Products excellent.

    Verified Customer
  • Best service in getting the product…

    Best service in getting the product fast and the product is of excellent quality

    Verified Customer
  • Delivery on time

    Delivery on time . All good

    Verified Customer
Read all 1971 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

Trustpilot

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.

  • I'm delighted with this product and very interested in testing out other products in the future

  • 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! Thank you.

  • I gave my 6 month old girl Optibac Probiotics. This is amazing. She is now 1 and still taking daily sachets of Optibac. 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.

  • 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. 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.

  • 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. 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 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.

  • 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. 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 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 ;)


Leaving a review

We'd be very grateful if you wrote us a review. If you've used on of our products recently, please visit our shop and leave your thoughts on the specific product page.