Semen Cassiae Torae Cassia or Foetid Cassia Seeds
Materia Medica Data
- Category
- Herbs that Drain Fire
- Temperature
- Cool
- Nature & Flavour
- Bitter, Sweet, Cool
- Channels Entered
- LIV, KI, LI.
- Latin (pharmaceutical)
- Semen Cassiae Torae
- Chinese
- 决明子
- Tone Marks
- jué míng zĭ
- Translation
- Seeds of Realized Brightness
Chinese Herb Actions
What is Jue Ming Zi used for in Chinese medicine?
Jue Ming Zi (Cassia obtusifolia/Cassia tora seed) is traditionally used to clear Liver heat, brighten the eyes, and moisten the intestines — it is a common choice for red, itchy, light-sensitive eyes from Liver wind-heat, and for dry stool or chronic constipation, especially where Liver involvement is suspected.
- Clears Wind-Heat in the Liver channel and brightens the eyes — red, itchy eyes, photophobia, and excessive tearing from Liver channel wind-heat.
- Clears internal Liver heat / settles rising Liver Yang — Liver-Yang-type eye disturbance; also used in more recent practice alongside other measures for elevated blood pressure and blood cholesterol.
- Moistens the intestines — dry stool or chronic constipation, particularly where Liver-Yin deficiency is part of the picture.
Source: Sacred Lotus sources & references; cross-referenced against multiple online sources; Bensky, Materia Medica (3rd ed.).
Chinese Herb Dosage
What is the typical dosage of Jue Ming Zi, and how is it prepared?
Roughly 9–15 g in decoction, up to 30 g if used alone — the seed is the part used. For eye conditions linked to Liver and Kidney deficiency, it is traditionally dry-fried (stir-fried without oil) before use, which is said to moderate its cooling, laxative effect while preserving its eye-benefiting action.
Source: Sacred Lotus sources & references; cross-referenced against multiple online sources; Bensky, Materia Medica (3rd ed.). Reference only — not a prescription.
Chinese Herb Contraindications & Cautions
Are there cautions for Jue Ming Zi?
Jue Ming Zi is best avoided in loose stools/diarrhea and used cautiously in people with low blood pressure — its intestine-moistening, mildly laxative action can worsen loose stools, and its traditional blood-pressure-lowering association means it is not typically combined with other strongly hypotensive measures without professional guidance.
- Diarrhea/loose stools — avoid; the herb’s moistening, laxative action is contrary to this presentation.
- Low blood pressure — use cautiously; Jue Ming Zi has a traditional and researched association with lowering blood pressure.
- Combination caution — traditionally not combined with Huo Ma Ren (Semen Cannabis), as both are moistening laxative seeds and the combination is considered redundant/excessive for the bowels.
Source: Sacred Lotus sources & references; cross-referenced against multiple online sources; Bensky, Materia Medica (3rd ed.). Reference note, not medical advice.
Chinese Herb Toxicity & Overdose
Low toxicity reported at traditional doses. Jue Ming Zi (Cassiae Semen) has a long history of dietary and medicinal use, including as a roasted tea substitute in East Asia. A 2023 comprehensive review notes it as generally well tolerated, while highlighting that formal toxicity and safety-evaluation data remain an identified research gap rather than a settled question.
Source: PMID 36702448 (Cassiae Semen comprehensive review, Journal of Ethnopharmacology, 2023). Reference note, not a safety guarantee.
Herb-Drug Interactions
No well-established clinical herb–drug interactions are documented. Given the herb’s traditional and researched lipid- and blood-pressure-lowering associations, practitioner awareness is reasonable for patients on antihypertensive or lipid-lowering medication — this is precautionary, not a demonstrated clinical interaction. (Flagged for practitioner confirmation.)
Western / Biomedical Research
Chinese Herb Clinical Studies & Research
Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.
Is there modern research on Jue Ming Zi (Cassiae Semen)?
Yes — an active research literature on Cassiae Semen's anthraquinone chemistry, with the main verified action being a mild anthraquinone-driven laxative effect plus lipid-, liver-, and eye-related research still developing. Chemically, the seed contains roughly 137 identified compounds, most notably anthraquinones (including aurantio-obtusin) and polysaccharides.
- Laxative/anthraquinone action — Cassiae Semen's traditional laxative effect is attributed to its anthraquinone content, the same chemical class responsible for the laxative action of related herbs such as rhubarb and senna; this is the best-supported mechanism behind the “moistens the intestines” traditional use.
- Aurantio-obtusin pharmacology — a 2023 review of this major seed anthraquinone describes reported effects relevant to metabolic conditions (including obesity, diabetes, and fatty liver in Chinese clinical use) and vascular/immune signaling; preclinical and mechanistic research, not a treatment claim.
- Broader pharmacology — the 2023 comprehensive review reports effects studied across the digestive, cardiovascular, and nervous systems, consistent with the traditional lipid- and blood-pressure-lowering uses, and flags eye-disease applications and pharmacokinetics as priority areas for future research.
Human clinical trial evidence specific to Jue Ming Zi remains limited; most support is preclinical/mechanistic or drawn from its isolated anthraquinone constituents.
Sources: PMID 36702448 (Cassiae Semen comprehensive review, Journal of Ethnopharmacology, 2023); PMID 37456169 (aurantio-obtusin pharmacology review, Experimental and Therapeutic Medicine, 2023). Research context, not a therapeutic claim.
Chinese Herb Notes
How is Jue Ming Zi processed and combined?
Raw Jue Ming Zi is more purgative and heat-clearing; dry-frying moderates the laxative effect for eye-focused use, especially where Liver/Kidney deficiency is present rather than pure excess heat. The choice of raw versus dry-fried processing is one of the main ways practitioners tailor the herb to a constipation-dominant versus an eye-focused presentation.
- Raw (unprocessed) — favored for its stronger heat-clearing and intestine-moistening action, appropriate where constipation or clear excess heat predominates.
- Dry-fried (chao Jue Ming Zi) — favored for eye disorders associated with underlying Liver and Kidney deficiency, where a milder laxative effect is preferred.
(Traditional processing and formula context, not treatment advice.)
Source: Sacred Lotus sources & references; cross-referenced against multiple online sources; Bensky, Materia Medica (3rd ed.).
Sources & References
Compiled and edited by Thomas Dehli, Founder & Editor, Sacred Lotus Updated
The information here is referenced from numerous sources — teachers, practitioners, class notes from Five Branches University, the books below, and the published research literature, with citations given as resolvable PubMed identifiers. Where sources disagree, I have flagged the discrepancies directly. If facts couldn't be verified, I have left them out. How we source our content.
Reference information for students and practitioners — not medical advice. Consult a qualified practitioner. Terms of use.
Chinese Herbs Books & References
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