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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 5,835 reviews)
Scientifically proven to reach the gut
& complement the natural microbiome
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and 14-day hassle-free returns
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The Optibac Nutrition Team
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Need some help getting started?
If you're not sure where to start, visit our getting started page to read our expert recommendations
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Choosing the best friendly bacteria
Confused about which friendly bacteria supplements are the best? We can help you to decide.
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About us
As a family run business, we love what we do and are dedicated to developing an expert range of natural supplements