The whole body,
evidence-graded.

Materia is an evidence-graded reference for remedies, organized by body part. A layered, clickable human body leads into a knowledge graph linking body, condition, remedy, compound, and study. Every remedy is evidence-graded and study-cited. It is ad-free and not medical advice.

Yes, Materia is completely free and ad-free. It is a static reference site with no subscription, no account, and no advertising. All content is publicly accessible to anyone, with nothing gated behind a paywall or sign-up.

Each remedy is assigned an evidence grade based on the quality and quantity of cited studies. Grades reflect the strength of clinical research, ranging from meta-analyses down to traditional use. The methodology page explains the full grading system in detail.

Yes. Materia features an interactive body explorer — click any anatomical region to see the conditions and remedies associated with that body part, from headaches to joint pain to digestive issues. The layered model lets you switch between skeletal, muscular, organ, and other systems.

Yes. Materia covers all remedy types, including herbs, supplements, and pharmaceutical drugs. Each remedy is linked to its active compounds and the studies that tested it, regardless of whether the remedy is natural or synthetic. Coverage is judged by evidence, not category.

No. Materia is not medical advice. It is an educational reference that compiles and grades the scientific evidence for remedies. Always consult a qualified healthcare professional before starting, stopping, or changing any treatment based on what you read here.

Materia includes hundreds of remedies across dozens of body parts and conditions, each with cited studies and an evidence grade. The content is hand-edited and continuously expanded as new research is reviewed and added to the knowledge graph.