Smart Supplement
Smart Supplement
Fuel for better living
Smart Probiotic
Smart Probiotic
Support for your microbiome
Bundle – Save 14%
Bundle – Save 14%
For your body and mind, combined
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Smart Probiotic

4.6/5 based on 418 reviews

A high-impact, vegan formula of seven highly researched strains, plus zinc, for the gut, immunity, and mind. Guaranteed to contain a minimum of 20bn CFU in a single daily capsule.

30-day money-back
Third-party tested
No need to refrigerate
Gluten free

Gut health, redefined

Your gut is key to every aspect of health. Whether you have gut issues or not, microbiome disruption from modern lifestyles impacts our mental and physical health.

Our proprietary technology targets the gut-brain axis, delivering bacteria with proven benefits to the gut alive.

SPB—lifestyle image—rounded corners, grey BG

3 reasons you’ll love it

  1. It’s rooted in science.

    Our formula, made up of seven strains in optimal amounts, is informed by 380+ studies.

  2. It’s proven to work.

    Third-party testing shows that it delivers 50x more alive and active bacteria than alternative tested formats.

  3. It's made and trusted by experts.

    It's developed by leading scientists and dietitians and loved by health professionals.

What to expect

Discover how the Smart Probiotic benefits you.

SPB — Benefits
Digestive health*

Supports digestion and growth of beneficial gut bacteria, while promoting regularity and stool hydration.

GI relief*

Helps alleviate GI discomfort, such as bloating, gas, constipation, and diarrhea.

Restores balance*

Aids intestinal barrier repair after antibiotics.

One capsule a day

All seven strains, along with zinc, are in every capsule.

At any time

We generally suggest taking it in the morning, but find a time that fits your schedule.

With or without food

No need to take anything else alongside your Smart Probiotic, unless you want to.

No need to refrigerate

Keep it in a cool, dark place.

World's most studied strains. Fact.

Designed by neuroscientists, dietitians, and gut experts over two years, the Smart Probiotic represents an unmatched commitment to research.

Our strains are backed by over 380 clinical studies, and we’re continuously investing in third-party testing so you can trust what you’re putting in your body is proven to work.

Sophie – Experts
Sophie Medlin, RD
Head of Nutritional Research
Sophie Medlin, RD
Head of Nutritional Research
Consultant dietitian, chair of British Dietetic Association for London, founder of City Dietitians, spokesperson for evidence-based nutrition, and lecturer at King's College London.
Tara – Experts
Dr Tara Swart, PhD
Chief Science Officer
Dr Tara Swart, PhD
Chief Science Officer
Neuroscientist, medical doctor, leadership advisor, and MIT lecturer with a PhD in neuropharmacology.
SPB – Pill exploding

Designed to survive

Most probiotics don’t work—the bacteria die before they reach the gut.

But our delayed-release technology and proprietary protective matrix guarantee the majority of our 20bn CFUs reach your colon, where they can have an impact.

Engineered with precision SPB PDP

Engineered with precision

From strain-specific fermentation to continuous temperature checks, every stage of the Smart Probiotic’s manufacturing process is carefully monitored.

That’s why it contains 200x more live bacteria than best-selling over-the-counter alternatives.

We're here to help

Frequently asked questions

We’ve got the answers.

Find more answers on our FAQ page

Join 56,000+ happy customers

"Nothing has really alleviated the problems I've had apart from, for the first time, Heights."
Aidan B.
“With a delayed release capsule and acid resistant strains ensuring the live bacteria make it to your gut.”
“I’ve been taking this for the last few weeks and I have been loving it!”
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Make the smart investment

20 fundamental nutrients. 20bn live bacteria.
Our Symbiosis bundle is the smarter way to a healthy body and mind. With the Smart Supplement and Smart Probiotic to cover all your bases, so you can look forward to brighter days.
Monthly deliveries, on time
Ongoing 14% saving
Easy-to-manage subscription
30-day money-back guarantee