PrecisionBiotics Zenflore reduces fatigue and supports mental performance


Featured Questions

Why is Zenflore special?

The 1714-Serenitas® live culture in Zenflore is a unique bacterial culture that has been clinically studied in people with everyday stress1

Zenflore is the only product that contains the 1714-Serenitas live culture. By combining this unique Bifidobacterium longum 1714® culture with specially selected vitamins, Zenflore helps to support mental performance and combat fatigue.*

The unique culture in Zenflore is a 'good' bacteria that occurs naturally in the human gut. It is part the Bifidobacteria family, one of the first kinds of bacteria passed by mother to baby at birth2.

It is a PrecisionBiotic which work specifically on the area for which it was developed.

Is the culture Zenflore natural?

Yes. Zenflore contains the 1714-Serenitas culture, a bacterial culture that occurs naturally in the human gut. 

It's part of the Bifidobacteria family of bacteria that are given by mothers to their babies at birth2.

To ensure this natural culture reaches your gut with its properties intact, we have created a special formulation which is stable at room temperature and does not need refrigeration.

What are the ingredients in Zenflore?

Zenflore contains the natural live bacterial culture 1714-Serenitas plus specially selected B vitamins:

  • Thiamine (vitamin B1)
  • Riboflavin (vitamin B2)
  • Niacin (vitamin B3)
  • Vitamin B6
  • Folic acid
  • Vitamin B12
  • Biotin
  • Pantothenic acid

There are also some excipients to help with formulation, all held in a clear capsule.

There are no known allergens in Zenflore. All raw materials used for Zenflore do not contain any allergen listed in the Directive 2007/68/EC and its amendments. The facilities we use to manufacture also ensure that during the production process, raw materials are not exposed to  cross contamination from allergens. 

Please see the outer pack for a full ingredient list.

How many bacteria are in each capsule of Zenflore?

A single Zenflore capsule contains 1 billion live bacteria, or 1x109colony forming units (CFUs), at the time of manufacture.

The quantity of bacteria in each capsule has been chosen for optimal action. It has been rigorously tested by scientific teams, culminating in testing in clinical trials.

Zenflore contains a single live culture, the specially selected Bifidobacterium longum 1714-Serenitas culture. As scientists, we know that mixing multiple bacterial cultures does not guarantee that each will retain its properties 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.

Stress And Your Brain

Taking Zenflore

Zenflore Safety

Contact the Careline regarding Zenflore

Where can I get more information about Zenflore?

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
Ireland: 021 206 6012

Open: Monday to Friday, 9am-5.30pm