Chì Shí Zhī (赤石脂), known in English as Red halloysite (Halloysitum rubrum), is a warm, sweet, sour and astringent Chinese herb from the Stabilise & bind category. It enters the Large Intestine and Stomach channels. Its main action: binds intestines, stops diarrhoea.

Chì Shí Zhī Hear it pronounced in Mandarin:
PinyinChì Shí Zhī (Chi Shi Zhi)
Chinese赤石脂
EnglishRed halloysite
Botanical nameHalloysitum rubrum
CategoryStabilise & bind
NatureWarm
FlavourSweet, Sour, Astringent
ChannelsLarge Intestine, Stomach
Dosage9–12g (decoct first)
CautionsDamp-Heat accumulation; pregnancy (use with caution); not used with Rou Gui

Actions

  • Binds intestines, stops diarrhoea
  • Stops bleeding
  • Generates flesh, closes sores (topical)

Indications

  • Chronic diarrhoea and dysentery
  • Blood in the stool
  • Uterine bleeding and vaginal discharge
  • Non-healing ulcers and weeping eczema (topical)

How to remember Chì Shí Zhī

Stabilise & bind herbs are mostly astringent and sweet, and most enter the Kidney channel.

You can work these out
Sweet, Astringent: like most Stabilise & bind herbs
Large Intestine channel: from its action “Binds intestines”
Learn by heart
Warm: Stabilise & bind herbs vary in nature
Sour: unusual for Stabilise & bind herbs (most are astringent or sweet)
Stomach channel: nothing in its group or its actions points to it

Other Stabilise & bind herbs

Test yourself

What is the nature and flavour of Chì Shí Zhī?

Chì Shí Zhī is warm and sweet, sour and astringent.

Which channels does Chì Shí Zhī enter?

Chì Shí Zhī enters the Large Intestine and Stomach channels.

What are the actions of Chì Shí Zhī?

Binds intestines, stops diarrhoea; Stops bleeding; Generates flesh, closes sores (topical).

What is Chì Shí Zhī used for?

Chronic diarrhoea and dysentery; blood in the stool; uterine bleeding and vaginal discharge; non-healing ulcers and weeping eczema (topical).

Practise Chì Shí Zhī and the other 290 herbs

Recognise each herb from its picture, recall its nature, flavour, channels and actions, and review it again just before you would forget it.

Try the 5-question herb quiz

Or practise a TCM case

Shen Study is a study tool. Doses and cautions are as taught in standard Chinese materia medica texts; they are not prescribing advice.