Materia Medica

Fo-Ti (Reynoutria multiflora) — He Shou Wu, Chinese Knotweed
A careful Fo-Ti guide covering Reynoutria multiflora, raw versus prepared He Shou Wu, traditional tonic use, limited evidence and major liver-injury risk. Read more...
Tussilago farfara (Coltsfoot), realistic botanical photo
Coltsfoot (Tussilago farfara) — Coughwort, Foal's Foot
A careful guide to Tussilago farfara covering coltsfoot's traditional cough use, pyrrolizidine alkaloids, liver risk, smoke exposure and modern safety. Read more...