Eden Apothecary · Herb Profile
Citrus reticulata
Pronounced Chen Pi: chun PEE. Citrus reticulata: SIT-rus reh-tik-yoo-LAY-tuh.
Warm, dry, and dispersing: an aromatic, aged bitter peel that unsticks a bloated, boggy middle burner, wakes a sluggish appetite, settles nausea and rebellious qi, and thins damp phlegm from a congested chest.
Generally considered safe in normal food and modest therapeutic amounts. Aged tangerine peel is a widely eaten, food-grade botanical, and classical Chinese formulas use it, under supervision, precisely to settle the nausea and vomiting of pregnancy (for example within Xiang Sha Liu Jun Zi Tang and related Spleen-harmonizing prescriptions). It is a mild qi-regulator rather than a strong qi- or blood-mover, so it is regarded as one of the gentler herbs of its class. Prudence still argues against high or prolonged qi-moving doses in pregnancy; keep to culinary or low therapeutic amounts and use therapeutic doses under professional guidance. Sources: AHPA Botanical Safety Handbook (2nd ed.), Citrus reticulata pericarp; Chen and Chen, Chinese Medical Herbology and Pharmacology; Bensky, Clavey and Stoger, Chinese Herbal Medicine: Materia Medica (3rd ed.).
Considered compatible with breastfeeding in normal food and therapeutic amounts. Aged tangerine peel is food-grade and mild, and aromatic digestive (carminative) herbs of this kind are traditionally regarded as suitable during lactation; some traditions use warm carminatives to ease infant colic transmitted through the mother's digestion. Formal lactation-specific safety data are limited, so keep to reasonable amounts. Sources: Chen and Chen, Chinese Medical Herbology and Pharmacology; AHPA Botanical Safety Handbook (2nd ed.).
Suitable for children in age-appropriate amounts. Chen Pi is a classic, gentle pediatric digestive in Chinese medicine, used in small doses for poor appetite, colic, bloating, nausea, and phlegm-damp cough, and it is a common ingredient in children's congees and teas. Reduce the dose to weight and keep courses short, since its warm, drying nature can overheat or dry a thin, hot child. Sources: Chen and Chen, Chinese Medical Herbology and Pharmacology; Bensky, Clavey and Stoger, Materia Medica.
A gentle, food-grade herb (the aged peel is eaten in teas, congees, and confections and is listed as non-toxic in the Chinese Pharmacopoeia), but it is warm and drying, so excessive or long-term use can consume qi and injure Yin fluids, producing dry mouth, thirst, constipation, or restlessness. Reserve it, or pair it with moistening, Yin-nourishing herbs, in the dry, hot, or fluid-deficient. Distinguish true Chen Pi (aged sweet-mandarin peel) from the stronger, qi-breaking Qing Pi (green, unripe tangerine peel) and from Zhi Shi and Zhi Ke (immature and mature bitter-orange peel, Citrus aurantium), which are more forceful and carry meaningful synephrine and drug-interaction concerns.
Yin-deficient dry cough and empty-heat patterns, internal heat and fire, and frank dryness (relative TCM contraindications: the herb is warm and drying). No absolute contraindication in food or normal therapeutic amounts. Use caution, and prefer food or low therapeutic doses rather than high or prolonged dosing, in pregnancy, and when taking narrow-therapeutic-index CYP3A4 or P-glycoprotein drugs at high herbal doses (see Drug Interactions).
Among the most sustainable herbs in the materia medica. Citrus reticulata is one of the most widely cultivated fruit crops on earth, and the peel used for Chen Pi is an upcycled byproduct of the fresh-fruit and juice industries, so harvesting it creates no pressure on wild populations. The premium aged Guangchenpi is a value-added product of long-established Xinhui orchards. The plant is not at risk and is not listed by United Plant Savers (a North American native-plant registry). The main quality and ethics issue is authenticity and pesticide residue: prefer organically grown, properly aged peel and verify the source, since the peel concentrates any surface agrochemicals.
Not in the canonical biblical texts, and not native to the biblical Near East; the mandarin (Citrus reticulata) is native to southern China and southeast Asia, and its earliest materia medica record is Chinese, in the Han-era Shen Nong Ben Cao Jing. The only citrus of the ancient Mediterranean and biblical Jewish tradition is the citron (Citrus medica, the etrog of Sukkot, read into the 'fruit of goodly trees' of Leviticus 23:40 by later rabbinic interpretation), which is a different species; the tangerine and its peel belong to the East Asian, not the biblical, tradition.
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