
Citrus reticulata
Also known as mandarin orange, mandarin, tangerine peel, aged tangerine peel, chen pi, qing pi, ju hong, chén pí, qīng pí, jú hóng.
The mandarin or tangerine is a small evergreen tree native to southern China and cultivated throughout the warm temperate world. In Chinese medicine the peel is the medicine that matters: ripe peel aged for at least a year becomes chen pi, one of the most prescribed qi-regulating herbs; the small green immature fruit or peel is qing pi, a stronger, more dispersing herb for the liver; and the thin outer red layer is ju hong, the most aromatic and drying of the three for phlegm. Aged peel from Xinhui in Guangdong is prized; the older the peel, the smoother its action.

Ask Herbert about Tangerine. Herbert is the master herbalist inside Bountiful Herbs: he answers from this plate and eleven hundred others, with dosing, pairing and cautions. Your first ten questions are free.
Ask HerbertBloating, poor appetite and nausea with a thick white greasy coat, where the digestion is damp and sluggish rather than hot
A wet, rattling cough with abundant easily raised white phlegm in a patient who also feels full in the chest and stomach
Sharp, distending pain under the ribs or in the breasts tied to emotional tension, calling for qing pi rather than chen pi
The record lists 6 contraindications; open the plate in the library to read them in full.
Chen pi is the workhorse. Add it to almost any formula for a damp, sluggish, bloated digestion, classically with ban xia (Pinellia), fu ling (Poria) and gan cao for phlegm-damp, or with bai zhu, dang shen and fu ling to keep a spleen tonic moving.
Temperature: warm. Taste: acrid, bitter, aromatic. Channels: Spleen, Lung (chen pi, ju hong); Liver, Gallbladder, Stomach (qing pi). Actions: Regulates qi and harmonizes the middle burner; Dries dampness and transforms phlegm; Spreads liver qi and breaks up stagnation (qing pi); Disperses food accumulation and relieves distension (qing pi); Supports the action of tonics by preventing cloying and stagnation.
| Preparation | As written | Metric |
|---|---|---|
| Decoction (chen pi) | 3-10 g dried aged peel daily in decoction | 3000-10000 mg |
| Decoction (qing pi) | 3-10 g dried immature peel daily in decoction | 3000-10000 mg |
| Decoction (ju hong) | 3-6 g dried outer red peel daily in decoction | 3000-6000 mg |
| Tincture (1:5, 45%) | 2-4 mL three times daily | 2-4 mL |
| Tea | 2-5 g aged peel steeped in 250 mL hot water once or twice daily | 2000-5000 mg |
Doses are reproduced from the sources for practitioners and are not a recommendation for any person.
Overview. The mandarin or tangerine is a small evergreen tree native to southern China and cultivated throughout the warm temperate world. In Chinese medicine the peel is the medicine that matters: ripe peel aged for at least a year becomes chen pi, one of the most prescribed qi-regulating herbs; the small green immature fruit or peel is qing pi, a stronger, more dispersing herb for the liver; and the thin outer red layer is ju hong, the most aromatic and drying of the three for phlegm. Aged peel from Xinhui in Guangdong is prized; the older the peel, the smoother its action.
Clinical Notes. Chen pi is the workhorse. Add it to almost any formula for a damp, sluggish, bloated digestion, classically with ban xia (Pinellia), fu ling (Poria) and gan cao for phlegm-damp, or with bai zhu, dang shen and fu ling to keep a spleen tonic moving.
Chinese Medicine Profile. Temperature: warm. Taste: acrid, bitter, aromatic. Channels: Spleen, Lung (chen pi, ju hong); Liver, Gallbladder, Stomach (qing pi). Actions: Regulates qi and harmonizes the middle burner; Dries dampness and transforms phlegm; Spreads liver qi and breaks up stagnation (qing pi); Disperses food accumulation and relieves distension (qing pi); Supports the action of tonics by preventing cloying and stagnation.
Tangerine stands in 370 documented formulas in the library, among them ùng gián công chi tāng, hua gài sǎn, má hung dèng shi wei wán, xiang sù sǎn, xiang sù công chi tāng, wũ rén wán.

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