Our founding team members are physicians, with years of exposure to western medicine and academic research. Our experience has shown how the western approach to health and wellness has some severe...

The cornerstone of our retreats is an incredible transdisciplinary team of skilled and experienced facilitators. We are dedicated to providing our guests the opportunity to benefit from the potential...

Facilitating Entheogenic and Psychedelic Experiences in Amsterdam, The Netherlands, Holland, Northern Europe. Tailored to your needs, you may choose the medium and duration of your treatment. The...

Community, research, coaching platform for microdosing with psychedelics. Our coaching/therapists team guides our clients through their microdosing journey.

What is OPEN? The OPEN Foundation is an independent not-for-profit NGO, based in the Netherlands. OPEN was founded in 2007 with the primary goal to stimulate academic research into therapeutic...