Life transition · loss of meaning

When you are between versions of yourself.

For people moving through change, uncertainty or a loss of meaning that no longer feels easy to carry alone.

If a role, relationship, direction or inner sense of self has shifted, and you no longer feel fully at home in the life around you, you are not alone. ONCE offers a carefully structured psilocybin-assisted pathway with professional screening, clinical support and integration.

Start a confidential preliminary assessment

Professional screening
Supervised access in Amsterdam
No promises, no hype

The ONCE pathway is not a replacement for medical or mental-health care.

A woman in a long coat walking beside an Amsterdam canal at dusk

You might be in the right place if:

Something has ended or changedA role, relationship, move, loss or decision has shifted the shape of daily life.

You feel disconnected from directionYou can keep going, but meaning, energy or inner clarity have become harder to find.

You want reflection, not pressureYou are not looking for hype or a forced breakthrough, but for a careful, structured process.

You want a supported pathway in AmsterdamWith professional screening and clinical oversight at each step.

About the ONCE pathway

ONCE is a professionally supported pathway that combines psilocybin-assisted sessions with psychological preparation and integration.

It is not a treatment for every life transition, and not every difficult period should be medicalised. The pathway is designed to support careful reflection, structured access, professional support and evidence-informed practice.

Everyone begins with a confidential preliminary assessment to help understand your situation and whether this pathway may be appropriate for you.

Your situationYou share what has changed, what feels unclear, and what you hope this process might help you understand.
Professional reviewQualified clinicians review your summary to consider suitability and risk. You may be invited for a screening conversation.
Preparation & in-person daysIf the pathway is appropriate, you continue with preparation, your in-person session in Amsterdam, and integration support afterwards.
Integration & follow-upYou are supported in making sense of the experience and relating it back to ordinary life, work, relationships and decisions.

Learn how the pathway works

What may matter here

Not every difficult transition is a condition to treat. Sometimes the more useful question is not whether something is wrong, but what kind of support is appropriate now.

Recent loss, major upheaval, medication, mental-health history and current circumstances can all affect whether this pathway should be considered.

See evidence and sources

Not every difficult transition is a disorder.Some periods of uncertainty, grief or identity change call for time, context and careful review.

A major change can also be a reason to wait.Recent upheaval may mean that another form of support, or more time, is more appropriate before considering this pathway.

Suitability is considered individually. ONCE does not promise a specific outcome.

Want to explore this with more structure?

Start a confidential preliminary assessment

Takes about 4 minutes. You read your full summary before any contact details are requested.