Quick Facts
| Latin Name | Prinsepiae Nux |
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| Chinese Name & Pinyin | 蕤仁 · Rui Ren |
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| Medicinal Part | Fruits and seeds |
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| Efficacy Category | Heat-clearing |
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| Botanical Origin | The dried ripe kernel of Prinsepia uniflora Batal. or Prinsepia uniflora Batal. var. typica Schneid. (Rosaceae). |
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| Nature & Flavour | Sweet; Slightly cold |
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| Channels Entered | Liver |
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What Is Rui Ren?
Rui Ren (Prinsepia Nut) is a medicinal herb of Traditional Chinese Medicine.
Primarily produced in the Chinese provinces of Shanxi, Gansu, Inner Mongolia, Henan, Hebei.
Nature & Flavour: Sweet; Slightly cold
Channels Entered: Liver
Rui Ren: Materia Medica Profile
Identification & Quality Standard
Prinsepiae Nux
Botanical Origin
The dried ripe kernel of Prinsepia uniflora Batal. or Prinsepia uniflora Batal. var. typica Schneid. (Rosaceae).
Production Regions
Primarily produced in the Chinese provinces of Shanxi, Gansu, Inner Mongolia, Henan, Hebei.
Quality Requirements
Superior material is full, reddish-brown, with large kernel.
Macroscopic Features
Oval or oval-oblong, 7~10 mm long, 6~8 mm wide; externally light brown to dark brown, with irregular deep pits and reticulate wrinkles; ventral suture with a ridge; texture hard; after cracking, kernel is oval, seed coat light brown, cotyledon two, milky white, oily; faint odor; slightly bitter taste.
Traditional TCM Properties
Sweet; Slightly coldLiver
Traditional Functions
Disperses wind and clears heat, nourishes liver and brightens eyes.
How Rui Ren Is Used in TCM
In the Chinese materia medica, Rui Ren is classified among the Heat-clearing herbs.
Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.
