OPEN Foundation


Do you have a question for us? Great! As we receive similar types of questions regularly, please check out this page to see whether your question has already been answered before. If not, please send us a message and one of our team members will get back to you as soon as possible. Thank you!


If you don’t find an answer to your questions on this page, please get in touch via our contact page
For questions or support specific to the OPEN Membership Programme, you can send us an email to:
For questions or support specific to ICPR, you can send us an email to:
We do not really have recommendations for therapists. As a foundation, we specifically focus on scientific research, and a lot more research needs to be done before those substances will be broadly used in therapy, if that will happen at all. 
We would like to caution you to consider anyone offering psychedelic-assisted therapy with scrutiny, since some people may offer therapy with psilocybin or ayahuasca without a background in mental health treatment, which may possibly affect patients negatively.

Check out our resources page for the latest papers on the potential use of psychedelics. The best way to stay informed is by subscribing to our newsletter or even better through becoming a member

We envision a world where safe, beneficial, and accessible applications of psychedelics are ethically and responsibly integrated within science, healthcare, and society.

Founded in 2007, the OPEN Foundation is the leading non-profit organisation dedicated to advancing psychedelic research and therapy in the Netherlands and Europe. We bring together and educate professionals, policymakers, and the public through conferences, training and membership programmes, along with conducting and promoting rigorous interdisciplinary research into psychedelics.

The OPEN Foundation is an independent, not-for-profit, public benefit organisation. Your contribution helps envision a world where safe, beneficial, and accessible applications of psychedelics are ethically and responsibly integrated within science, healthcare, and society. The best way to support OPEN is by becoming a member

Membership INQUIRIES

You can sign up for our membership program here.
Please contact us at and we will be happy to assist you in finding an alternative payment method such as iDEAL.
You can find the event agenda on our website, here.
You can attend events through a small one-time donation and get a free trial of the OPEN Membership Programme while supporting the nonprofit mission of the OPEN Foundation. Register for the events on the event page here to make a donation.

Keep an eye out for an email with further instructions on creating an account and accessing our community platform. Remember that this will be sent to the email you used when you registered, and also to check your spam mail.

You will be able to access the events after registering on our community platform.


ICPR has been running since 2010 and its 5th edition happened between September 22nd-24th, 2022 at Philharmonie Haarlem. The next edition will happen between June 6-8, 2024. To learn more about ICPR visit

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Yes, a certificate of participation will be made a few days after the conference. If you have not gotten yours yet, send us an email to 

Should you still have any unanswered question or concerns, please contact


If you haven't found the answer to your question, you can use the link to our contact page below to send us a direct message. Thank you!


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30 April - Q&A with Rick Strassman