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The UK's No. 1 bestselling brand
of friendly bacteria supplements^
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Rated 'Excellent' on Trustpilot
4.8 stars (based on 6,650 reviews)
Scientifically proven to reach the gut
& complement the natural microbiome
FREE UK DELIVERY on orders over £10
and 14-day hassle-free returns
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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 £2,000,000 to charity since our launch.
Eco-conscious
Committed to running a sustainable business, we've reduced our environmental impact including eliminating plastic from our packaging wherever possible.
A little more about who we are
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![Why Optibac Probiotics]()
Meet Jalal, Soraya and Farah
As a family run business, we love what we do and are dedicated to developing an expert range of natural supplements.
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![Supporting Charities]()
Supporting charities
We're proud to be supporting a number of charities including Womankind Worldwide who we've donated over £1 million to.
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Our live cultures
We specialise entirely in live cultures (friendly bacteria) and aim to offer a specific supplement to suit an individuals needs. It's not 'one-size-fits-all'!
Award-winning product range
Where to next
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![Shop the range]()
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![Need help getting started?]()
Need some help getting started?
If you're not sure where to start, visit our getting started page to read Dr. Kate's recommendations