The Science Behind PrecisionBiotics®

PrecisionBiotics® was founded by scientists over 20 years ago, they believed then and continue to believe now that the human microbiome contains the answers to many modern problems. That’s why our scientists are dedicated to understanding unique bacterial strains and why all our products are scientifically studied.

Did you know?

  • Bacterial cultures can’t permanently colonise the gut, which is why with most supplements containing bacterial cultures it is suggested to take the product daily and continuously.
  • Bacterial strains are not all the same and they have different effects.
  • When combined, strains can have competing effects, meaning multi-strain products should be scientifically studied to ensure they maintain their qualities.

Bifidobacterium longum 35624®

Formerly known as Bifidobacterium infantis 35624®, Bifidobacterium longum 35624® is a unique strain, only found in PrecisionBiotics® products in the UK.

The strain was originally isolated from a healthy human gut and is proven to be safe and well tolerated, as well as clinically proven to survive transit through the human gut.

The strain itself has also been clinically studied in double blind, placebo controlled human trials and the results can be found online by searching for the strain name or via your healthcare professional.

Studies have indicated that the immune system and the neurological system, which govern brain function, are regulated by the gut microbiome. Thus, taking care of your gut microbiome is crucial since it impacts many vital body processes and has an impact on your general health.

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Bifidobacterium longum 1714®

Our second PrecisionBiotics® unique strain, Bifidobacterium longum 1714®, was also originally isolated from a healthy human gut and is scientifically proven to survive in the human gut environment.

The strain has also been clinically studies in double blind, placebo controlled human trials. Trials of this standard are to show true results in humans and versus a placebo to prove the strain is having an impact, beyond the ‘placebo effect’.

Again, the results of these trials can be found online by searching for the strain name or via your healthcare professional.

The gut and the brain are two completely different parts of our body and ostensibly involved in completely different functions, so how do we figure that they are so intrinsically linked? Find out more about good bacteria.

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Dual Strain Science

There are many multi strain products available in the UK, but unlike the majority of those products, our multi-strain food supplement that contains Bifidobacterium longum 35624® and Bifidobacterium longum 1714®, has been clinically studies and scientifically proven to survive in the human gut environment as well as being compatible in combination.

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Bifidobacterium longum PB-VIRTM

Our final strain is Bifidobacterium longum PB-VIRTM, and was originally derived from a healthy human gut. It is currently in preclinical trials but has a unique mode of action that works at the site of administration e.g. the nasal cavity.

Learn more about if you can really boost your immune system as well as gut powered immunity.


Are you a healthcare professional? If so visit our dedicated science website to learn more about our strains and their benefits:

Learn more about bacteria and the gut in our science blogs: