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What are PrecisionBiotics®?

Is it worth taking several bacterial strains together?

We're sometimes asked why our products contain only one or two types of bacteria, instead of a mix of five or even ten types.

As scientists, we know that mixing multiple bacterial cultures can mean their individual qualities are affected. Different cultures behave in different ways and may even have competing effects. And cultures of animal or plant origin may not be 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 action. We then put each culture 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 product and how it works in the human gut. 

Featured Alflorex Questions

Why is Alflorex® different?

Alflorex is the only product in the UK that contains the unique 35624 live bacterial culture.

This culture has been clinically tested by leading scientists and gastroenterologists. The results of these trials have been published in a wide range of respected scientific journals.

The live 35624 culture in Alflorex is a type of bacteria that occurs naturally in the human gut. It's part the Bifidobacterium group, one of the first kinds of bacteria passed by mothers to their babies at birth.

Is the bacterial culture in Alflorex natural?

Yes. Alflorex contains the natural Bifidobacterium infantis 35624® culture, that is a type of bacteria that occurs naturally in the human gut. It's part of the Bifidobacterium family of bacteria that are given by mother to baby at birth.

To ensure this natural live culture reaches your gut with its properties intact, we have developed a special formulation and confirmed its activity in the gut in clinical trials, using the highest standards of scientific testing and human clinical trials.

This stable formulation also means that Alflorex does not need refrigeration.  

Will Alflorex reach my bowel in peak condition?

Yes. The 35624® culture in Alflorex has been shown in 2 clinical trials, reported in respected scientific publications, to remain active right through the digestive system and to reach the bowel with its properties intact.

It's now the No. 1 recommended bacterial culture by doctors and gastroenterologists in the US.

How many bacteria does each capsule of Alflorex contain?

A single Alflorex capsule contains around 1 billion live bacteria, or 1x109 colony forming units (CFUs), at the time of manufacture. The quantity of bacteria provided in each capsule has been chosen for optimal balance in the gut. The dose in the capsule remains effective throughout its shelf life.

Taking Alflorex

Alflorex® safety
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Contact the Careline team

Our Careline team have worked with thousands of our customers to answer any type of question about our products. If you have a question, just call us on

UK:       0330 057 8598
021 206 6012

Open: Monday to Friday, 9am-5.30pm