What are live cultures?

Live, or active cultures, refer to the microorganisms found in foods such as yoghurt, which may be beneficial for human health. The term 'live cultures' is increasingly used instead of the term 'probiotics' and a common example is the species acidophilus.

Find a stockist

Type your postcode or town in the box below to find your nearest OptiBac Probiotics stockist:


We’re experts in live cultures, and the OptiBac Probiotics range offers you some of the most researched strains in the world.

Read more about our research...

A natural option

All the OptiBac Probiotics supplements are free from added flavourings, unlike many sources of live cultures.

See how we're different...

From our family to yours

We're a family run business, which means we understand the importance of looking after your whole family.

Find out more about us...

Customer Reviews

Below you'll see a selection of reviews recently collected on the independent external review website TrustPilot.
Read all our reviews

Average TrustPilot Rating

From 958 reviews

IBS probiotics

Very efficient service. Best probiotics I have ever had for IBS.

Amazing probiotics one of a kind

Keeps my flora balanced,, thank you

Excellent service

So quick and so easy use and my order arrived extremely quickly and well packaged. At Christmas time I even got a free Enjoy ... Read More

Did what it said it would.

I suggestes Optibac probiotics to my Mother following a course of antibiotics. She found that it did improve her bowel health a lot faster than just eating yoghurts.

Probiotics for Infants

Great quality, sachet form and my infant cannot tell there is anything added to daily milk. Helped sort out babies tummy after course of antibiotics fast. Fast delivery. Thanks

Excellent product.

Excellent product. Quickly delivered orders.Highly recommended.Thank you.


Delivery always prompt, good product

Could not believe how effective this product is

First class service and response but not had cold symptoms since started taking this production


Excellent product, friendly prompt service.

Awesome product!

This is by far one of the best probiotics on the market, well priced, easy and convenient with no need to refrigerate and a ... Read More