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For every day EXTRA Strength
Try our bestselling 20 billion good bacteria supplement. Contains Lactobacillus acidophilus NCFM®, one of the most researched acidophilus strains in the world.
Shop nowThe UK’s most recommended friendly bacteria supplements**
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How we are different
There are many reasons for taking OptiBac, and we'd like to think our supplements are a little bit different. So why choose OptiBac? See for yourself.
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Research
We place great emphasis on the scientific research behind all of the strains we use.
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About us
We are a UK family business founded by siblings Farah, Jalal and Soraya, specialising in live cultures. Read more about our story.
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Womankind
Through the sales of our 'For women' supplement, we have raised over £330,000 for Womankind Worldwide so far. Find out about our unique partnership.
