About me

Chemistry and biochemistry. That is my area of expertise regarding education. However, after completing my education, I started doing something completely different, namely providing retail and service in the gaming computer world. In addition to managing various web shops and tinkering with game consoles, I always maintained my scientific interest in (bio)chemistry in combination with sports, nutrition and the general well-being of people. Based on this interest, I have been reading and studying scientific research on diseases, nutrition, sports, herbal medicine, phytotherapy, psychology and general well-being for more than 10 years. I started using this knowledge to help people holistically. After I gained more and more knowledge and experience with psychedelics (magic truffles), everything fell into place. Psychedelics fit perfectly into a healthy lifestyle and earned a place in coaching for both physical and mental health. The idea behind trip therapy was born and the total approach became even more holistic. The demand was high for this type of trajectory and so the education as a basis, the lasting interest in biochemistry, the power of psychedelics and my own urge for health merged into trip therapy.

Read more about the importance of neurochemistry here


In recent years I have specialized most in depression and negative self-images and how these work at the cellular level. Depression can have a variety of causes, including diet, medication, illness and emotional setbacks. The mind, or in other words your way of thinking, can make your body unhealthy and therefore trigger depression due to inflammation. It also works the other way around, depression or inflammation in the body causes negative thinking. You can use my knowledge and services to escape the negative spiral of depression. I am currently attending lectures on the combination of behavior, biology and evolution. This shows that a lot of our behavior goes beyond just our own lives. I apply this new knowledge to new sessions.

Read more here about my knowledge that is useful as a trip guide

My approach

The action plan is based on the (medical) data that you provide to me during the digital intake. I use the results of the intake and your data to see whether you are missing certain substances and, if necessary, you will receive advice regarding nutrition, supplements, herbs, exercise and/or lifestyle. I try to address the whole picture, which is the whole body (and mind). During a trip session the beginning will be similar to talk therapy. After taking it, we will communicate less and less and ultimately leave words alone, after all, it is about the experience. During a trip session I can use music, light, herbs and/or aromatherapy to achieve our pre-agreed goal. My presence will be subtle and I present myself as a calm and safe energy that supports you and provides you with light adjustments where necessary. During the sobriety process, we will carefully start talking again and look together at what your psychedelic experience can mean for you.

My own experiences with psychedelics

In order to do this work because of my own interest, I made about 140 to 150 trips. Most were not in very strong doses but were intended to learn more about the psychedelic state and the services associated with psychedelic therapy. A number of higher dose trips were able to help me gain insights. Here is a brief bit about myself and how some psychedelics have helped me.

I had a beautiful childhood. Maybe my parents were a little too strict sometimes and I sometimes get a good corrective slap. I don't think I've ever really suffered from trauma or anything like that. Yet everyone's behavior changes, including mine, based on previous circumstances. During several psychedelic trips I have relived these circumstances, but never as something very painful. I appreciate myself today and that means that I have to appreciate everything I have been through, because it has made me the person I am. So I have accepted the past because there are only two options:

1: You will have to change the things you cannot accept
2: You will have to accept the things you cannot change

Now the above is just a single insight that I have gained because of psychedelics, among other things. But there are many more insights that have made my life pleasant.

I was able to cope with the loss of two loved ones during a trip. The ceremony that I saw with my eyes closed was an indescribably beautiful farewell. From sadness to happiness. From suppressed memories to honoring remembered beautiful moments.

Another great insight is that I previously believed that prosperity and finances are the most important. I worked myself to death to earn money. It is something that stimulates our society. Namely individual performance and self-enrichment. That came easily to me, but it was not satisfying. Psilocybin truffles have made me realize that it is all about the connection and not about loneliness. Loneliness actually leads to unpleasant complaints and addictions. Psychedelics are about connection!

Marcel Thank You Plant Medicine -Marcel
Volunteer Recordings for Thank You Plant Medicine (2019)

Experience with psychedelic sessions

I am the founder of triptherapie.nl and have therefore been working at this relatively young company for 5 years. Before I started trip therapy, I had already had 7 years of experience with psychedelics and guidance. In all those years, I have guided more than 1,600 people so far and I have been working (more than) full time since its foundation.

I would also like to provide some insights that I gained during my work as a trip leader:

  • Our reality is what you think it is. The world is heaven and hell at the same time. If you focus on the heavenly aspects, the opportunities will grow when you experience and recognize heavenly things in this world. This is how the “law of attraction” works. So we co-create reality.
  • Everyone has a different trip and believes in different things. It is an interpretation of information. That interpretation is only human and a little different for everyone.
  • Some think that psychedelics heal people, but what we often forget is that everyone is whole. Psychedelics show you that you are perfectly shaped to the circumstances that were and are. Depression and burnout are a perfect message from the body that something else needs to happen. Psychedelics are not the solution but the key to the solution in the subconscious brain.
  • Let's not think in terms of pieces or things we are missing. Let us think of the things we do have. Everything is a gift and so is life itself.
  • The purpose of life? That is life in itself. There is plenty of room to set your own goals for this. That can be a burden or a wonderful freedom! Some people get an inspiration and that feels like a given.
  • Life is a journey just like a psychedelic trip. It's not about the destination.
  • Good and evil is all in the beholders eye!

Marcel in the media

Due to the high interest in psychedelic therapy from the media, we have also collaborated on certain programs a number of times. Here are a selection of interesting articles and podcasts to learn more about trip therapy and Marcel as a supervisor.

Reviews about Marcel

Customer reviews often give a better idea of how others experience Marcel as a trip leader. If you are interested, read a few reviews to get multiple opinions and get an idea about Marcel.

Read all the reviews about Marcel during the trip therapy sessions here


Nowadays chatting via chat apps such as WhatsApp and Telegram the easiest way to have quick contact. The phone number I use for these chat apps is 0640898455.

Although e-mail is used less and less often, you can of course also contact us by e-mail. You can email me at the following email address.


Marcel works at the following locations

Marcel can be booked for sessions at the customer's location and Psychedelic Loft Schiedam. If you want to know more about these locations, you can find more information via the clickable photos.

Book a session with Marcel at the customer's location

I work throughout the Netherlands. So I can be booked for sessions at your home, in an Airbnb, holiday home or a hotel of your choice. For the sessions at home, I come from my current home town of Noordwijkerhout and the travel costs of 50 cents per km driven are therefore calculated from zip code 2211BM calculated. Do you live far away or are you coming from abroad? In that case, you can also choose to rent a house/hotel/Airbnb closer to beautiful Noordwijkerhout. Finally, you can also use our location in Schiedam. Bookings at the Schiedam location include overnight accommodation and food/drinks.