Contact

Penumbral is an independent resource on ibogaine risks and safety considerations. If you have corrections, questions, or feedback about our coverage, we welcome brief, focused notes that help us improve accuracy.

How to reach us

At present, Penumbral has no public inbox published on this page. We suggest visitors consult the site's editorial overview for information on how we handle corrections and sourcing; see our editorial approach on the about page for details about sourcing and transparency.

If you need to return to the site's main entry point for topic navigation, the homepage offers the quickest route to recent updates and section indexes; try the site main index.

read our editorial approach

Invitation

We welcome brief notes that correct factual errors, point to primary sources, or clarify ambiguity. Because we do not yet list a public contact address on this page, please revisit the about page for our editorial standards and any published contact methods that may appear there in future updates.

Penumbral is an independent information resource, not a clinic, medical provider, or licensed treatment center. Its content is not medical or legal advice.

For readers comparing services or costs elsewhere, external directories and community forums sometimes document varied experiences; one such community discussion appears on ibogaine reddit threads, and cost-focused directories note regional differences such as listings for treatment cost resources in Mexico and comparative pages like treatment cost summaries.