Part tech, part science, part real life. 100% clarity.

Built by founders who were tired of guesswork

Gutcultured started with a simple belief:

The gut has been ignored for too long,
and health-conscious adults deserve honest gut health, not hype
.

We’re founders who have spent years in tech and data - and we were frustrated with vague 'probiotic blends,' buzzwords, and marketing dressed up as “science.”

So we built what we couldn’t find:
the best clinically-verified strains, a transparent formula, and a simple, daily ritual that fits into a real, ambitious life.

Meet the Founders

For Stijn, the original founder, the mission is deeply personal. After a close personal loss and learning that he, too, carries the BRCA1 gene, “waiting and hoping” stopped feeling like a strategy. He started looking for science-backed ways to support long-term health and kept coming back to one theme: the gut. That journey led him into clinical research, strain IDs and partners who could back every decision with real data, not just good marketing.

For Hannah, a former litigator, tech CEO and VP Product, it was about clarity, simplicity and longevity. She’d spent years building systems that help people perform at a high level, but fertility conversations, peri-menopause awareness and hard training (martial arts, weights, padel) forced a bigger question: is my health strategy as intentional as my career? She wanted a daily ritual that felt smart, sustainable, and kind to a busy, ambitious life... not another confusing wellness experiment.

Together, we bring science, strategy and storytelling to gut health; combining Stijn’s deep dive into clinical evidence with Hannah’s design, tech and behaviour-change lens. Gutcultured is our answer for people like us: health-conscious, short on time, allergic to fluff, and ready for something that actually fits real life and lasts.

A system under pressure

Why We Built Gutcultured

Modern life is quietly wearing down your gut microbiome - processed food, stress, poor sleep, travel and antibiotics . When the gut barrier weakens, toxins slip through and can trigger what science calls increased intestinal permeability and inflammation (or in common speak, “leaky gut”). In everyday life, this can show up as bloating, brain fog, low mood, sensitive skin, and getting sick more often.

Your microbiome is the command center of your digestion, immunity, mood, focus and energy. Daily support matters.

Our Philosophy

Genes matter, but only 20%. The rest? Your lifestyle.

In health, the latest science confirms that genes matter - but only 20%. The rest? Your choices. Your gut sits in the center of the 80% you control - sleep, nutrition, movement, stress, recovery, connection, purpose.

Gutcultured sits inside this bigger lifestyle philosophy - not as a magic pill, but as a precision tool that reinforces your daily choices.

The 7 Non-Negotiables for Gut Health and Longevity

Small daily habits that shape 80% of your health. We designed Gutcultured to support these foundations - not replace them.

Sleep

7-9 hours regulates immunity, hormones, and microbial cycles.

Nutrition

Feed your microbes. Your microbiome can shift in just 72h based on diet.

Movement

Exercise boosts microbial diversity and reduces inflammation.

Stress

Chronic stress weakens your gut barrier

Recovery

Rest & Repair. Quick win: schedule one recovery ritual each week.

Social Connection

Loneliness drives inflammation. Quick win: one moment of joy a week.

Purpose

People with a sense of purpose live longer and healthier lives.

Our values

What we stand for

Clean
Simple formulas, tested ingredients, no gimmicks.

Premium
European-developed, pharma-grade standards from strain to packaging.

Scientific
LGG® and BB-12® backed by 500+ clinical studies and 2,500+ publications.

Aspirational
For people who want clarity, resilience, and longevity - without the noise.

Caring
Every choice we make is designed for long-term impact and accessibility.

The "Gut for Good" Project

Through the Gut for Good Project, we support communities with science-backed gut health tools, because resilience shouldn’t be a privilege.

This is only the beginning.

The Gutcultured app, habit trackers, and new tools are already in development - designed to help you feel sharper, healthier, and more in control every day.

Stijn and Hannah

Founders, Gutcultured

Don't miss out!

Stay in touch to access science-backed insights, and unlock exclusive early access offers!