Buy Friendly Bacteria

Browse the full range of Optibac supplements.

We are the UK & Ireland’s most recommended brand of friendly bacteria supplements*, with options to suit everyone.

Optibac have been specialists in live cultures for almost 20 years, and our range contains the world’s most researched strains of friendly bacteria1, shown in gold standard clinical trials to reach the gut and vagina alive. We offer live cultures for the whole family, tailored for every life stage and different health needs2,3.

We sell more than just friendly bacteria capsules: our range includes friendly bacteria in liquid drops, powder sachets, and gummies too, so whatever your preference, you will find a suitable supplement in the Optibac shop. Find out more about the different types of friendly bacteria supplement.

Those who like to shop sustainably will be pleased to note that we have reduced plastic in our packaging by 96% and use recyclable cartons. If you need further convincing to shop at Optibac, check out the excellent Reviews from our happy customers on each product page.


Showing 16 results

  • Adult Gummies

    Adult Gummies

    4.9/5 (18 reviews)

    From £12.99 to £23.99

  • Every Day

    Every Day

    4.8/5 (68 reviews)

    From £12.99 to £36.99

  • For Women

    For Women

    4.7/5 (157 reviews)

    From £9.99 to £52.99

  • Baby Drops

    Baby Drops

    4.8/5 (31 reviews)

    From £14.99 to £26.66

  • Immune Support

    Immune Support

    4.6/5 (25 reviews)

    From £12.99 to £23.99

  • Every Day EXTRA

    Every Day EXTRA

    4.8/5 (94 reviews)

    From £24.99 to £64.99

  • Kids Gummies

    Kids Gummies

    5/5 (45 reviews)

    From £12.99 to £34.99

  • One Week Flat

    One Week Flat

    4.2/5 (84 reviews)

    From £8.99 to £26.99

  • Bifido & Fibre

    Bifido & Fibre

    4.8/5 (37 reviews)

    From £7.99 to £20.99

  • Every Day MAX

    Every Day MAX

    4.9/5 (28 reviews)

    From £39.99 to £107.99

  • Pregnancy


    5/5 (22 reviews)


  • Babies & Children

    Babies & Children

    4.9/5 (57 reviews)

    From £7.99 to £48.99

  • For Those On Antibiotics

    For Those On Antibiotics

    5/5 (21 reviews)

    From £6.99 to £18.99

  • Saccharomyces Boulardii

    Saccharomyces Boulardii

    4.6/5 (73 reviews)

    From £7.99 to £29.99

  • For Cholesterol

    For Cholesterol

    4.8/5 (21 reviews)

    From £18.99 to £34.99

Should I take friendly bacteria in capsules, tablets, liquids, gummies or powders?

Friendly bacteria supplements come in numerous different formats, and people are often concerned about which forms of live cultures are best. Should you choose friendly bacteria capsules (also known as friendly bacteria tablets or pills) or friendly bacteria powders? Are gummies effective? Are liquid supplements better than friendly bacteria pills or tablets?

The simple answer is that, if you buy friendly bacteria from a reputable specialist company, then all formats will be equally as effective. Simple! Therefore, you can just choose the strains and formats which suit you best.

Find out more about choosing the best live cultures supplement.

To find out where else you can buy the Optibac Probiotics award-winning range of live cultures**, visit our FAQ pages.


  1. Dronkers, T. M. G., Ouwehand, A. C. and Rijkers, G. T. (2020) ‘Global analysis of clinical trials with probiotics’, Heliyon, 6(7). doi: 10.1016/j.heliyon.2020.e04467.
  2. Probiotics. (2022). NHS Retrieved 31 March 2022, from
  3. Markowiak P and Śliżewska K (2017) Effects of Probiotics, Prebiotics, and Synbiotics on Human Health. Nutrients, 9(9): 1021

* + An independent survey on probiotics of 1,000 people across the UK, August 2020. See T&C's for more details.

**Friendly bacteria, also known as ‘live cultures’ or ‘probiotics’, are good bacteria which live in the gut and are considered to be vital for good digestive and overall health2,3