Inessa Advanced Biotic Complex
Inessa Advanced Biotic Complex - as seen in The Sunday Times

Inessa Advanced Biotic Complex - as seen in The Sunday Times

Get soothing, effective gut support in one daily time-release capsule
Recommended in The Sunday Times
30 capsules
30 days supply
Regular price £38.99
Free UK shipping over £30
Not from the UK? We also deliver to Europe and parts of the world. See list here
Optimal gut health, no guesswork required?

It starts right here. Our unique blend contains 50 billion live organisms from seven science-backed strains, including 5 billion powerful saccharomyces boulardii cultures.

For specific gut health requirements

All seven strains studied in both IBS and IBD 

May help speed recovery from food poisoning and tummy bugs

Provides extra support when you’re travelling abroad, or taking antibiotics

No need for a separate saccharomyces boulardii supplement

What’s in Advanced Biotic Complex?

Say hello to your gut’s new best friends...

Features & benefits

Why you’ll love it

A unique blend of 7 powerful strains

A unique blend of 7 powerful strains

Each one clinically studied in a range of gut health complaints and conditions.
Clinically effective dose

Clinically effective dose

Every extra-strength capsule contains 50 billion live organisms, guaranteed to expiry.
No need for multiple products

No need for multiple products

With a full dose of 5 billion saccharomyces boulardii, it replaces the need for extra probiotic formulas.
Delayed-release capsule

Delayed-release capsule

Cultures can be damaged by stomach acid. Our capsules get them to where you need them most.
No cheaper strains allowed

No cheaper strains allowed

Every strain earns its place in our blend because of clinical data to support their potency.
Designed for specific gut health requirements

Designed for specific gut health requirements

Whether you’re travelling, suffering gut dysfunction or recovering from a bug, get extra support when your gut needs it most.
Travels well

Travels well

Unlike many other probiotic products, it doesn’t require refrigeration at normal room temperature.

Recommended by experts

“Next gen gut supplements”

The Sunday Times

“Developed to support gut health for people suffering from IBD and Irritable Bowel Syndrome”

Hello! Magazine

“Best For Gut Health”

Country and Townhouse

Featured in Harper’s Bazaar

Customer Reviews

Based on 1 review
Gold star product

Absolutely love this product. It’s helped sort my gut out and reduce bloating. I take it first thing in the morning before I have any food and I love that I’m putting so much goodness in to my body every day!

Advanced Biotic Complex is perfect if…

You need extra-strength support for specific gut health requirements.

You want only science-backed, well-researched strains.

You’re recovering from a course of antibiotics.

You want to guard against tummy bugs when travelling.

You want to support recovery from food poisoning or a tummy bug.

You don’t want to take multiple products to get everything you need.

May not be suitable

Consult your doctor before use. Some (but not all) patients who are immunocompromised may lack the ability to mount an appropriate response to new bacteria in the gut, which may lead to serious complications.


Live organisms taken only from strains with clear evidence for efficacy

High levels of live bacteria guaranteed to expiry, 50 billion per dose

Formulated by a clinician & IBD patient, based on personal and real clinical experience

Delayed-release capsule so live cultures get to where they’re needed most

Contains a full dose of soothing saccharomyces boulardii organisms

Other brands

Useful bacteria blended with cheaper strains to make up the numbers

Lower doses to cut down on costs, no guarantees on bacterial survival

Made by companies focused primarily on profit, over an all-premium fomula at a fair price

Live bacteria destroyed in stomach acid so only some make it through

Separate supplement of saccharomyces boulardii organisms required

Aliza founder of Inessa
From the founder

“As both a Nutritional Therapist and an IBD patient myself, I knew how challenging it was to find an effective solution to specific gut health requirements. I found clients had to combine supplements to get what they needed, which was time-consuming and expensive.

I wanted to ensure our probiotic blend included only strains with clinical evidence to support their use. And we were the first company to combine friendly bacteria with an effective dose of saccharomyces boulardii organisms, something I’m really proud of.”