Reliable gut health support with 100 million CFU probiotic strains

Max Strength Probiotics

High strength gut support from Probio7


This collection brings together our highest-strength friendly bacteria supplements, designed for people looking for advanced, targeted microbiome support. Each formula delivers a multi-strain blend at significantly elevated CFU (colony-forming units), offering robust support for digestive balance.

These products are often chosen by people who’ve taken friendly bacteria supplements before, are recovering from digestive disruptions caused by travel or dietary changes, or simply want a stronger daily option.

Black Friday 40% off with code 'SupportYourGut'

  • Travel Gut Support
  • 2 years+
  • 40 Capsules

Compare our highest strength formulas

Probio7 Advanced

9 strains • 10 billion live cultures

A popular high-strength, multi-strain option for everyday targeted digestive support. View Probio7 Advanced

Probio7 Ultra

9 strains • 100 billion live cultures

Our most powerful friendly bacteria supplement. Ultra is designed for those seeking a maximum-strength formula. View Probio7 Ultra

Probio7 Restore – Phase 1

100 billion live cultures

The first stage of the Restore programme. Designed for support during and after antibiotics. View Probio7 Restore

What makes a high-strength probiotic?

High-strength probiotics contain larger quantities of live cultures, measured in CFU. These formulas are designed to support the microbiome when you want a more intensive approach. Strength alone isn’t the goal, the combination of strains and the quality of manufacturing also matters, which is why all Probio7 high-strength products contain carefully selected, well-researched strains produced under strict quality standards.

Support immunity and digestion with clinically researched probiotics

Who might choose a max-strength supplement?

Every gut is different. Some people prefer a higher strength formula if they:

  • Have taken friendly bacteria supplements before and are ready for a stronger option
  • Want targeted digestive support
  • Have experienced recent changes such as travel, stress or dietary shifts
  • Are following a structured programme like Probio7 Restore during and after antibiotics

Why choose Probio7

  • Over 30 years of expertise
  • Multi-strain formulations
  • Clinically researched strains
  • Suitable for daily use
  • Vegan Society certification on selected products

Developed and reviewed with nutrition professionals

FAQs

A high-strength probiotic generally contains 10 billion CFU or more. Products in this category offer a more intensive level of friendly bacteria for targeted digestive support.

Not necessarily. The right choice depends on your needs, your gut, and your experience with friendly bacteria supplements. Multi-strain diversity and product quality matter as much as total CFU.

Many people use high-strength probiotics daily, but how long you take them depends on your goals. Consistent use for several weeks helps support the microbiome’s natural balance.

If you're new to friendly bacteria supplements, you may prefer beginning with a gentler option such as Probio7 Original before moving to higher strengths.

Probio7 Ultra delivers the highest CFU at 100 billion.