Shop Probiotics

Browse the full range of Optibac Probiotics supplements.

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

Optibac Probiotics have been specialists in live cultures for almost 20 years, and our range contains the world’s most researched strains of friendly bacteria1, proven in gold standard clinical trials to reach the gut and vagina alive. We offer probiotic supplements for the whole family, tailored for every life stage and different health needs2,3 including digestion4, mood5, and immune support6.

We sell more than just probiotic capsules: our range includes live cultures 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 probiotic 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 15 results

  • Adult Gummies Probiotics

    Adult Gummies Probiotics

    4.9/5 (18 reviews)

    From $17.99 to $32.99

  • For Women Probiotics

    For Women Probiotics

    4.7/5 (157 reviews)

    From $12.99 to $64.99

  • Every Day Probiotics

    Every Day Probiotics

    4.8/5 (68 reviews)

    From $17.99 to $39.99

  • Immune Support Probiotics

    Immune Support Probiotics

    4.6/5 (25 reviews)

    From $17.99 to $32.99

  • Baby Drops Probiotics

    Baby Drops Probiotics

    4.8/5 (31 reviews)


  • Saccharomyces Boulardii

    Saccharomyces Boulardii

    4.7/5 (77 reviews)

    From $11.99 to $34.99

  • Every Day MAX Probiotics

    Every Day MAX Probiotics

    4.9/5 (28 reviews)


  • One Week Flat Probiotics

    One Week Flat Probiotics

    4.2/5 (84 reviews)

    From $12.99 to $34.99

  • Pregnancy Probiotics

    Pregnancy Probiotics

    5/5 (22 reviews)


  • Babies & Children Probiotics

    Babies & Children Probiotics

    4.9/5 (57 reviews)

    From $9.99 to $54.99

  • For Cholesterol Probiotics

    For Cholesterol Probiotics

    4.8/5 (21 reviews)

    From $22.99 to $45.99

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

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

The simple answer is that, if you buy your friendly bacteria supplements 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 probiotic supplement.

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


  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
  4. Satish Kumar L, Pugalenthi L, Ahmad M, et al. (April 18, 2022) Probiotics in Irritable Bowel Syndrome: A Review of Their Therapeutic Role. Cureus 14(4): e24240. doi:10.7759/cureus.24240
  5. Messaoudi M. et al., (2011), ‘Assessment of psychotropic-like properties of a probiotic formulation (Lactobacillus helveticus R0052 and Bifidobacterium longum R0175) in rats and human subjects’. British Journal of Nutrition, 105(5):755.
  6. Jespersen L. et al., (2015), ‘Effect of Lactobacillus paracasei subsp. paracasei, L. casei 431® on immune response to influenza vaccination and upper respiratory tract infections in healthy adult volunteers: a randomized, double- blind, placebo-controlled, parallel-group study’. Am.J.Clin.Nutr., 101:1188-1196.

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

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