Establishment of Trip Therapy
Triptherapie was founded in 2018 door Marcel van der Putten, driven by a powerful personal and scientific motivation. The reason for its establishment lay in his conviction that psychedelics, and particularly magic truffles containing psilocybin, can play a key role in mental health recovery, provided they are used in a responsible and well-supervised manner.
Marcelle's background in (bio)chemistry, his passion for psychology, nutrition and wellbeing, and his own transformative experiences with psychedelics came together in a holistic vision. He saw that existing therapies often fell short for persistent conditions such as depression, anxiety or trauma. Therefore, he wanted to offer an alternative that did not merely focus on symptom management, but instead worked on deeper levels of consciousness, neurochemistry and attitude to life.
Triptherapie was founded with the aim of making psychedelic sessions accessible in a safe, professional and personal way. Since then, we combine the psychedelic sessions with lifestyle coaching and neurochemical support, but also with integration guidance.
This all-in-one concept makes it unique in the Netherlands.
Since its inception, Triptherapie has grown into the market leader in the field of psychedelic journeys with a therapeutic character. With more than 3,500 guided sessions by name, we have firmly established ourselves as the most experienced and versatile platform within this fast-growing branch of psychedelic sessions.
Our strength lies in the professionalisation of psychedelic guidance, With safety, care, and depth at the forefront. In recent years, we have not only been able to support thousands of clients in their personal process, but we have also expanded our team with several certified therapists, psychologists, and SPV’ers. Through these qualities, we were able to help a wider group of people.
With this growth, we remain true to our mission: deploying psychedelics safely, professionally and transformatively as a catalyst for lasting change.
A better picture
If you want a better understanding of our working method, the Triptherapie video is highly recommended to watch. The short film you can see here shows some experienced counsellors and includes two in-depth client stories.
In the video, clients speak candidly about their transformative experiences with psychedelic therapy. Curious about what it can do for you? Complete the intake and you will receive a response soon.
Our therapists and trip sitters
What connects us is a shared mission: guiding profound, safe and healing psychedelic experiences focused on personal growth, trauma integration, the alleviation of psychological distress and the rediscovery of a sense of purpose.
Within our multidisciplinary team you will find certified psychologists and therapists who are trained both internally and externally to work with psychedelics. Thanks to their background in psychology, body-oriented therapy and systemic work, they are exceptionally well equipped to intervene therapeutically where necessary during a programme involving psychedelic sessions. They frequently guide clients struggling with, for example, depression, anxiety, trauma or low self-esteem.
Our trip counselors specialize in guiding deep psychedelic processes, which is an added benefit especially during the high-dose sessions with hallucinogenic psychedelics. They create the tranquility and confidence needed to let go.
We also work behind the scenes with GPs, therapists and psychiatrists who are open to this innovative method. These partnerships ensure that, in complex cases – such as those involving medication use or a history of psychiatric conditions – we can consult with medical professionals to guarantee the safety and effectiveness of a session.
Overview of available session facilitators
Marcel van der Putten
Founder Trip Therapy & Psychedelic Guide
2,467 guided sessions
NL · EN
Full-time psychedelic facilitator with a background in chemistry and a holistic approach.
Ronald Hochstenbach
Psychosocial therapist
390 guided sessions
NL · EN · DE
Psychosocial therapist with training in psychodrama, Voice Dialogue, IFS and mindfulness.
Janneke van de Geijn
Trusted contact person & Psychedelic guide
372 guided sessions
NL · EN
Lifestyle coach and trusted advisor. Responsible for customer contact and preparation; available for sessions only when necessary.
Reineke Brandt
Psychologist
198 guided sessions
NL · EN · DE
Combines psychological counseling with talk therapy, breathing exercises, yoga, and EMDR.
Sascha de Waal
Psychologist
175 guided sessions
NL · EN
Psychologist with experience in addiction care, mental health care and rehabilitation; further trained in CGT and EMDR.
Elke van den Neucker
Integrative psychotherapist
195 guided sessions
NL · EN · FR
Self-employed in the Netherlands
Integrative psychotherapist with experience as a teacher and supervisor; additional training in IFS and integration.
Gijs Tecklenburg
SPV driver
99 guided sessions
NL · EN · DE
Twenty years of experience in outpatient mental health care, with a background in mindfulness, conversational therapy and ACT.

Ylva Doorewaard Boekhout
health care psychologist
Supportive advisor
NL · EN
Adviser for psychological care, safety and integration. Does not offer psychedelic sessions.






