About us

Welcome to Optibac. We specialise entirely in friendly bacteria and are proud to be the UK & Ireland’s most trusted & recommended brand of friendly bacteria supplements.

When it comes to friendly bacteria, it's not a question of one-size-fits-all. That's why our wide range of supplements is backed by science and made for individual needs & life stages. Founded with the belief that everyone deserves to feel their best, Optibac is home to the most researched strains of friendly bacteria in the world.

We always prioritise the most natural ingredients, and we care about our planet and others. Find out more below. 

Choose the experts

As specialists in friendly bacteria we have a wide range of products to meet your individual needs. Our supplements are extensively researched and proven to not only reach the gut alive, but to complement the natural microbiome.

We’re proud winners of the King's Award for International Trade and are committed to helping our planet and others, as demonstrated by our support for organisations such as Womankind Worldwide.

Whether you’re just starting your friendly bacteria journey, or have been taking live cultures for years, you can have confidence in choosing Optibac.

Why Optibac?

Especially for you 

We specialise in friendly bacteria and our wide range offers specific, well researched strains for your individual needs.

Backed by science  

Our expert range has been developed with 20 years experience, and is home to the most researched strains in the world.

A more natural option

We always prioritise natural ingredients and take care to avoid unnecessary additives like sugars & flavours.

Award winning & rated 'Excellent'

Consumers around the world have rated us 5 stars on the independent review platform, Trustpilot, and we are proud winners of the King's Award for International Trade.

Caring & committed  

We're a UK family business, and we care about doing good even beyond our supplements range. We have donated over £1,500,000 to charity since our launch.


Committed to running a sustainable business, we've reduced our environmental impact including eliminating plastic from our packaging wherever possible.

We're proud of our reviews and feedback