Chi Shi Zhi
Halloysite (hydrated aluminum silicate mineral, Al₄(Si₄O₁₀)(OH)₈·4H₂O)
☯ TCM Properties
Astringes the Intestines and Stops Diarrhea; Astringes and Stops Bleeding; Promotes Tissue Regeneration and Heals Sores; Astringes to Stop Vaginal Discharge
Botanical Description
Chi Shi Zhi is a naturally occurring hydrated aluminum silicate clay mineral, principally halloysite (Al2Si2O5(OH)4·2H2O) and related kaolin-group phyllosilicates, often colored red, pink, or yellowish by iron-oxide impurities. The material is mined from weathered volcanic or sedimentary deposits in China and elsewhere; the medicinal grade is selected for its bright reddish color, smooth waxy fracture, and tongue-sticking property typical of the kaolin clays. It is ground to a fine powder, washed (levigated) to remove gritty impurities, and calcined before use. In traditional Chinese medicine the prepared mineral is sweet, sour, astringent, and warm, binding the intestines to stop chronic diarrhea and dysentery, securing the lower jiao to stop uterine bleeding and excessive vaginal discharge, and applied externally to absorb damp exudates and promote healing of non-healing sores.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| decoction | 6-15g | Daily | — | — | — |
Cultural & Historical Context
Traditional Chinese Uses
Chi Shi Zhi (halloysite clay, red halloysite) is a warm, astringent mineral substance used to bind the intestines and stop chronic diarrhea, secure Jing and control abnormal vaginal discharge, and stop certain types of bleeding. It is especially indicated for chronic diarrhea or dysentery with blood that has not responded to other treatments. Its strong astringent properties make it effective for binding and consolidating the lower burner when deficiency-type leakage is the primary concern.
Traditional American Uses
None Documented
Important Disclaimer
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.