On this page
Key Facts
- Material
- Pericarp (aged)
- Botanical source
- Citrus reticulata
- Direct human evidence
- No verified study currently linked
What Is Chen Pi?
Chen Pi (Citrus reticulata), known in Chinese as 陈皮 is the pericarp (aged) of Citrus reticulata (Rutaceae), a traditional Chinese medicinal material with documented use in classical TCM texts. In the traditional TCM framework, it is classified as warm in nature and pungent, bitter in flavor.
Regulates Qi, strengthens the Spleen, dries Dampness, transforms Phlegm. Classic herb for digestive Stagnation.
Botanical description: Chen Pi is derived from the mature pericarp (peel) of Citrus reticulata Blanco (Rutaceae family). After harvesting, the peel is sun-dried and then aged — typically for at least one to three years, with longer ageing traditionally considered to improve quality. Well-aged Chen Pi has a darkened, brittle texture and a rich, aromatic citrus fragrance.
Traditional TCM Context
Traditional functions: Regulates Qi, strengthens the Spleen, dries Dampness, transforms Phlegm. Classic herb for digestive Stagnation.
Traditional uses: Used for Spleen-Stomach Qi Stagnation: bloating, belching, nausea, poor appetite, sensation of fullness. Often paired with Ban Xia.
Related TCM patterns
This description reflects traditional TCM theory and is not a modern medical diagnosis or treatment claim.
What Research Applies to Chen Pi?
Flavonoids and volatile oils show prokinetic effects on gastrointestinal smooth muscle. Studies confirm gut microbiota modulation, promoting beneficial bacteria and SCFA production.
No published research studies are currently linked to Chen Pi in this library.
Research information will be added as verified studies become available.
Safety Information
Safety Summary
What is known
May be drying in Yin Deficiency. Generally very safe as both food and medicine.
What remains uncertain
- Herb-specific clinical safety data (adverse events, toxicity, long-term use) are not available for review.
- Drug-herb interaction data specific to Chen Pi may be lacking; most published interaction studies use extracts or isolated compounds.
Who should seek professional guidance
Pregnant or breastfeeding individuals, those taking prescription medications, people managing chronic conditions, and anyone considering herbal products for children should consult a qualified healthcare professional before using Chen Pi or any herbal product.
Platform safety boundary
TCMIO provides educational information only — not medical advice, diagnosis, or treatment recommendations. We do not provide dosage guidance, administration instructions, or individualized treatment plans. Always consult a qualified healthcare professional before using any herbal product.
Safety during pregnancy, lactation, and pediatric use has not been systematically evaluated for Chen Pi as a medicinal material. For urgent or severe symptoms, seek immediate medical attention.
Sources Used on This Page(2)
- 1.
Multiple authors. Citri Reticulatae Pericarpium modulates gut microbiota: Impacts on beneficial bacteria and SCFA production. Food Research International. 2025.
Bibliographic details
Reliability: Moderate
Source type: Review Article
- 2.
Chinese Pharmacopoeia Commission. Pharmacopoeia of the People's Republic of China, 2020 Edition, Volume I. Beijing: China Medical Science Press; 2020. Monograph: Citri Reticulatae Pericarpium (Chen Pi).
Chinese Pharmacopoeia 2020Bibliographic details
Reliability: gold
Last checked: July 2026
Source type: pharmacopoeia
Medical Disclaimer: The information on TCMIO is provided for educational purposes only. It is not intended as medical advice, diagnosis, or treatment.
Always consult a qualified healthcare professional before using any herbal products, starting any new treatment, or making changes to your existing healthcare regimen. Do not stop or modify any prescribed treatment without consulting your healthcare provider.
If you are experiencing severe or urgent symptoms, seek immediate medical attention by calling emergency services or visiting the nearest emergency department.