Healthy aging is a lifelong investment

Yoxlo’s patented research has unlocked the key to prolonging good health as we age

Rethinking healthy aging

Your life often gets smaller before you call yourself old.

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Aging is rarely experienced as one dramatic event. More often, it arrives as small, reasonable adjustments.

You skip the long trip. 
You take the lift. 
You recover a little slower. 
You say “not this time” more often. 
You start planning around energy, strength or uncertainty.

None of these moments feels like aging on its own. But together, they can make life smaller.

At YOXLO, we focus on functional reserve: the margin of strength, clarity and resilience that keeps life open. Not as a promise of eternal youth. Not as a biohacking game. But as a practical way to ask a better question:

What do you still want to be able to say yes to?

Support our next level of research →

Aging with Reserve

our vission

Keep life open for longer

In high-income countries, many people now live long enough to meet aging slowly. The harder question is no longer only how long life lasts, but how much of it remains open, active and your own.

Healthy aging is not the fantasy of living forever. It is the practical question of whether the extra years become wider or smaller.

At YOXLO, we focus on functional reserve: the margin of strength, clarity and resilience that helps people keep moving, deciding, recovering, participating and saying yes as they age.

FUNCTION-FIRST. SCIENCE-BASED.
Many healthy-aging claims begin with biology: a molecule, a pathway, a biomarker or a promising mechanism. These can matter, but they are not enough on their own.

YOXLO starts with a different question:

What counts as working?

For us, the answer must move closer to real human function. What is being measured? Does it match the promise? And would the change matter in daily life?

That function-first lens guides our research, product development and future measurement tools.

YOUNIQOR: OUR FIRST DAILY RITUAL
Youniqor is our first daily product, developed by YOXLO in the Netherlands.

It is a simple sachet ritual with a clear formulation, independent quality testing and full transparency.

No miracle language. No reverse-aging claims. No biohacker theatre.

Youniqor is designed for people who take healthy aging seriously, but do not live as if health is their full-time job.

Built for real lives, not perfect routines.

RECOGNIZED ON THE GLOBAL STAGE
In 2025, YOXLO was selected as a Semi-Finalist in the XPRIZE Healthspan competition, chosen from more than 600 teams worldwide by an international scientific jury.

For us, this recognition matters because it reflects the seriousness of our scientific approach and the relevance of measuring healthspan through real human function.

It does not mean our products have been proven to deliver health benefits. It means our approach was considered credible and promising within one of the world’s most ambitious healthspan competitions.

That distinction matters.

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Keep on doing what you love. For longer.

our mission

Build the bridge between aging science and real life.

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YOXLO turns serious aging science into practical, testable tools for people who want to stay active, independent and engaged as they age.

We connect scientific mechanisms, real-life products and functional measurement. Biology gives us hypotheses. Products create daily behaviour. Measurement helps reveal whether anything meaningful is changing.

Youniqor is our first product within that wider mission. YOXLO Reserve is our emerging measurement direction. Both are built around the same principle: healthy aging should become more practical, more measurable and more honest.

We are not here to sell the fantasy of staying young. We are here to make it easier to understand what helps people keep enough reserve for the life they want to keep living.

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Stef Verlinden

Founder, CEO and Chief Innovation Officer

“Healthy aging should not be about chasing youth. It should be about keeping enough reserve for the life you want to keep living”.

YOXLO was founded by Dr. Stef Verlinden, a medical doctor, biotech veteran and aging researcher focused on function-first healthy aging.

He is joined by co-founders René den Admirant, a commercial strategist with decades of experience in supplement brand building; Louis Kock, a specialist in operational scaling and e-commerce logistics; and Julliet Smit, a legal expert in intellectual property and regulatory affairs.

Together, they combine expertise in aging biology, consumer health, product development, operations and compliance.

YOXLO was built around a simple idea: healthy aging needs to move closer to real life. Not only mechanisms, markers or promises, but practical tools and products that help people understand what is changing, what is holding, and what may be worth doing.

Our work focuses on functional reserve: the margin of strength, clarity and resilience that helps people keep moving, deciding, recovering, participating and saying yes as they age.

We are not building another longevity brand. We are building a function-first healthy-aging company for people who want more than hype, but less than obsession.

If you want to support the development of function-first healthy aging, learn more about our Founding Member round.

Challenging the conventional

Yoxlo is a pioneer in the science of healthy aging.

Passion for progress

Our curiosity drives high expectations in research.

Life is extraordinary

Life is too short to be ordinary. Live it to the fullest.

Founding Member Information

Support YOXLO’s next phase.

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YOXLO is opening a limited early-stage participation round for people who want to support the development of function-first healthy aging.

This is not a public checkout. There are no automated payment links and no pressure to decide on the spot.

If you are interested, you can request the information package. It explains the structure, the risks, the terms and the next steps. After that, you can proceed at your own pace or schedule a short personal call. Participation, if you decide to proceed, is structured as a SAFE. The information package explains what that means, including the risks.

WHAT HAPPENS AFTER YOU SUBMIT

1. You receive the Founding Member information package.

2. You review the structure, terms and risks.

3. If you want to continue, we can schedule a short personal call.

No automated payment links.
No pressure.
Only invest if you understand and can accept the risk.