<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=408561125960951&amp;ev=PageView&amp;noscript=1">

PrecisionBiotics products now available in the UK

Alflorex Capsules
The #1 recommended live culture by US Gastroenterologists 

The live culture in Alflorex, 35624®, has been clinically tested by leading Scientists and Gastroenterologists in people with IBS*. These trials showed it reduces all of the following:

  • Bloating & gas
  • Abdominal Pain
  • Unpredictable bowel movements

This naturally occurring 'good' bacterial strain is part of the family of bacteria given by mothers to babies at birth. Suitable for those on a low FODMAP diet. No refrigeration required.

Learn More

Alflorex Straws
Easy to use straws
for getting your daily Alflorex

The same live culture as Alflorex capsules in a convenient straw. Just use the straw to drink from a glass of water or milk. 

  • No need to refrigerate 
  • Gluten and lactose free
  • For adults & children over 3 years  




Learn More

  • Chloe_Madeley_DailyMail-1080x160px.jpg
    As seen in the Daily Mail and Healthista

"This kind of bloating is all consuming...I'd have sizes 8 - 16 in my wardrobe"- Scarlett London. 

More Reviews

Our Story

Over 17 years ago, our scientists began researching thousands of live bacterial cultures (also known as probiotics) together with experts from one of the world's leading centres of microbiome research. 

Since then, they've discovered hundreds of different bacterial cultures and they've put each one through rigorous scientific tests. Amongst these hundreds are a handful of special bacteria that stand out because of the precise and significant improvement they make to human gut health.

When these live cultures pass all our tests, which include clinical trials in the UK and Europe, the PrecisionBiotics team are proud to produce them in a high quality and convenient form for consumers and clinicians.


Natural science, ready to work for you

All of our products contain live bacteria that occur naturally in the human gut and are at home there.

We spend many years observing and testing them in real people to ensure they deliver the precise effects needed and that they meet our rigorous safety standards.

To ensure they reach your gut alive we have created special formulations and we have confirmed their activity in the gut using the highest standards of scientific testing and human clinical trials. These stable formulations also ensure that none of our products need refrigeration.  

Precise bacteria, exact quantity

We're often asked why our products contain only 1 or 2 types of bacteria, instead of a mix of 5 or even 10 types.

As scientists, we know that mixing multiple bacterial cultures does not guarantee that each will work optimally or that different cultures will even complement each other. Different cultures behave in different ways and may even have competing effects. Cultures of animal origin are not native to the human gut so we do not add them.

It is the specific culture of bacteria and how that culture interacts with your unique gut bacteria that determines whether you will notice a difference.

So our focus is on investing to find the best bacterial culture for each specific gut condition. We then put each through a rigorous series of tests, culminating in clinical trials in the UK and Europe.
We produce a pure formulation, with no added bulk yoghurt or animal cultures, to provide a PrecisionBiotic® product that we can guarantee and that clinicians can recommend. 

We also guarantee that the number of bacteria is the optimal amount for each PrecisionBiotic and the human gut. 

Bacteria Blue.png

What our customers say about PrecisionBiotics products

"I had times where I'd be doubled over in pain and the bloating is all consuming, it was so bad that I have clothes ranging from a size 8 to 16 in my wardrobe, sometimes, I literally cannot pull on my jeans. I would have very frequent panic attacks in situations I felt I couldn't easily escape from if I was having a flare-up. Then I came across Alflorex and I was so impressed that I just kept taking them!"


Scarlett London Blog

“I felt tired all the time. My stomach felt very bloated, it started to make me very self-conscious and then I found Alflorex. I started to feel less tired all the time, my bloating had immediately started to go away and ease off and it really started to make a difference for me.”



Sanoobar PatelSanoobar Unscripted Blog

"These were unique symptoms that I had never come across before. It was extreme debilitating abdominal pain and then all sorts of bowel symptoms. I started taking Alflorex, the first month it lines your gut and since the second month, I've been symptom free! I can literally eat whatever I want and it will not trigger any of my symptoms."



Zoe Salmon,TV Presenter

See what our Customers are saying about us

“Our son is 2½ and has had constant toddler diarrhoea. He’d have diarrhoea 8-10 times per day and loose stools for 10 weeks at a time. We discussed his diet with the GP and he recommended lactose and gluten free but it made no difference. We’ve tried other probiotics, no difference either. Within his 1st month on Alflorex, he had firmer stools. He’s on it 6 months now and he’s noticeably stronger. He has a lot more energy and his colour is so much better. He is generally healthier. It’s an excellent product.”

Mark, Cork.  

I first tried Alflorex 12 months ago and it’s made a huge difference. I no longer have the pain and the bloating has gone down a lot

My energy is 100% and I’ve even started running at 63.

Patricia, Dublin

Hi. I'm Carmel. Nice to meet you.

Carmel & the Careline team

Our Careline team is here to answer any questions you have on any of our products.

We welcome questions from the public and healthcare professionals

If you've a question, please call us on

UK:       0330 057 8598

Ireland: 021 206 6012

Or email us by filling out the form on the right.

Thank you.

*1) Whorwell et. al. July 2006, American Journal of Gastroenterology and 2) O’Mahoney et. al. March 2005, Gastroenterology.

(2) Among gastroenterologists who recommended a brand of probiotic in AlphaImpactRx 2008–2017 surveys. Among doctors who recommended a brand of probiotic in AlphaImpactRx 2017 survey.

(3) Irish Pharmacy News awards 2015, 2016 and 2017.