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The terms that govern your use of this website. Last updated: 23 September 2026.
Welcome to the website of Metanoia, a California 501(c)(3) nonprofit public charity (EIN 39-2328100). By using this site you agree to these terms. If you do not agree, please do not use the site.
All content on this site is provided for scientific, educational, and informational purposes only. It is not medical, psychological, or legal advice, and it is not a substitute for consultation with a qualified professional. Never disregard professional advice or delay seeking it because of something you read here.
Metanoia conducts and shares research and education. We do not supply, sell, source, or facilitate access to psilocybin or any other controlled substance, and nothing on this site should be read as encouragement to obtain or use any illegal substance. The legal status of these substances varies by jurisdiction, and you are responsible for knowing and following the laws that apply to you.
Metanoia owns the content on this site, including text, our books, illustrations, and the Metanoia name and logo, or uses it with permission. You may read it, link to it, and quote it with attribution. Unless a page or document carries a Creative Commons license, you may not republish substantial portions or use the material commercially without our written permission.
Some material on this site carries a Creative Commons license, and the license named on that material governs it instead of the paragraph above. Our research data standards, such as the common data element set, use the Creative Commons Attribution 4.0 International license (CC BY 4.0): you may use, share and adapt them for any purpose, including commercial use, if you give appropriate credit. Our books use the Creative Commons Attribution-NonCommercial 4.0 International license (CC BY-NC 4.0): you may share, translate and adapt them for noncommercial purposes if you give appropriate credit and say what you changed. Commercial use of a book needs our written permission. Images or quotations from other sources keep their own terms, and the document marks them. No Creative Commons license covers the Metanoia name or logo, and none lets anyone suggest that Metanoia endorses their use or their version. Full license texts: creativecommons.org/licenses/by/4.0/ and creativecommons.org/licenses/by-nc/4.0/.
Donations to Metanoia are voluntary. Gifts are deductible for federal income tax purposes within the limits that apply to each donor. The donation disclosure on our Get Involved page gives the tax and legal information that California law requires. Please review our Privacy Policy for how donation information is handled.
Our site may link to external websites and sources we consider useful. We are not responsible for the content, accuracy, or practices of those third-party sites.
The site and its content are provided "as is," without warranties of any kind. While we work to keep our information accurate and current, science evolves and errors can occur. To the fullest extent permitted by law, Metanoia is not liable for any loss or harm arising from your use of, or reliance on, this site.
We may update these terms from time to time. Changes take effect when posted on this page.
Questions about these terms? Email main@metanoia-ca.org.