Pinyin: Pu Huang  Chinese: 蒲黄
Pharmaceutical: Pollen Typhae
Taxonomy: Typha angustifolia
English: Cattail Pollen / Bulrush Pollen

Tastes: Sweet, neutral
Meridians Entered: Liver and Heart

Actions & Indications:

1. Stops bleeding by astringing
   External bleeding due to traumatic injury
   Various forms of internal bleeding such as uterine bleeding, hematemesis, epistaxis, hemoptysis, hematuria, hemafecia or subcutaneous bleeding
2. Invigorates the Blood and dispels Blood Stasis
   Chest pain, postpartum abdominal pain and menstrual pain due to Blood Stasis
3. Promotes urination
   Lin Syndrome
4. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, makes the body light, boosts the Qi and physical strength and prolongs life so an to make one immortal. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 3-10g in decoction.
Cautions: Use with cautions for pregnant women.

Pinyin: Hua Shi  Chinese: 滑石
Pharmaceutical: Talcum / Magnesium Silicate
Taxonomy: Mg₃Si₄O₁₀(OH)₂
English: Talc / Talcum Powder

Tastes: Sweet, bland and cold
Meridians Entered: Bladder, Lung and Stomach

Actions & Indications:

1. Promotes urination and drains Heat from the Urinary Bladder (aids the movement of gravel and stones), (expels Damp-Heat)
   Hot Painful Urinary Dysfunction (Lin Syndrome) with hot, painful urination, dark, painful, burning, scanty urine
   Damp-Heat diarrhoea
   Qi Level Heat with Dampness with unremitting fever, heavy feeling in the body, thirst, yellow tongue coat
2. Releases Summeheat and resolves Dampness
   Summerheat (fever, urinary difficulty, thirst)
3. Absorbs Dampness and clears Heat (topically)
   Damp skin lesions (eczema, damp sores, prickly heat)
4. Stops bleeding due to Heat
   Heat type bleeding
   Nosebleed, vomiting blood (taken internally) Bleeding from wounds and sores (topical)
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of minerals which can, with protracted taking, make the body light, free from hunger and prolong life. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 10-20g in decoction, or applied externally.
Cautions: Talc can cause granulomas in the rectum, vagina or wounds and prolonged external use has also been linked to ovarian (Wentzensen & O'Brien, 2021), stomach (Chang et al., 2020) and lung (Chang et al., 2017) cancer but other reviews contradict these findings (Goodman et al., 2020) suggesting this may only be an effect seen in rats (Prueitt et al., 2024). For safety it should therefore not be used for prolonged periods.

It should also not be in inhaled as it can cause lung irritation and remain in the body for up to 40 years (Johnson, 2021).

Mineral products are prohibited from use in the UK under the Medicines Act 1968 ch. 67 which restricts herbalists to the use of plant products only. It is generally substituted with Chi Fu Ling and Ze Xie.