Qin Pi

Qin Pi is the dried bark of designated Fraxinus species. It is recognised by its grey-brown outer surface and pale inner bark, but species and quality markers should follow the applicable pharmacopoeial standard.

Qin Pi is bark from designated Fraxinus species, commonly recognized by a grey-brown outer surface and pale inner bark. Pharmacopoeial source identification matters because bark of different ash species can vary in chemistry and quality.

Quality and identity: Herbal names, plant parts, and processing methods can differ across regions. A reliable product should state the accepted source, medicinal part, processing method where relevant, and batch-quality information. A page image aids recognition but cannot authenticate a material.

In TCM theory, Qin Pi is traditionally classified in heat-clearing and drying-dampness contexts. These are pattern concepts and are not medical diagnoses.

It is traditionally placed in heat-clearing and dampness-pattern categories. Those categories do not diagnose bacterial illness, eye disease or gastrointestinal disease.

TCM classifications describe patterns and historical materia medica relationships. They should not be translated directly into claims to diagnose, prevent, or treat a modern medical condition.

Reported constituents: Aesculin, aesculetin and fraxin derivatives.

Coumarin-related constituents such as aesculin and aesculetin have been investigated mainly in laboratory and pre-clinical research. Human evidence for whole-herb use remains limited.

Aesculin, aesculetin and related coumarins are frequently discussed quality and research constituents. Much of the evidence is laboratory or pre-clinical; whole-herb clinical efficacy and interaction data remain limited.

Results from cell, animal, or chemical studies are preliminary. They do not establish effectiveness or safety for people, nor do they prove that a commercial product has the same composition.

Do not use as a substitute for medical care, particularly for eye, gastrointestinal, or febrile symptoms. Obtain professional advice before use with medicines or during pregnancy and breastfeeding.

Eye pain, visual change, bloody diarrhoea, high fever or ongoing symptoms need medical evaluation. Consult a professional before use with anticoagulants, prescription medicines, pregnancy or breastfeeding.

Stop using a product and seek medical advice if an allergic reaction or concerning symptom occurs. For persistent, severe, or rapidly worsening symptoms, obtain appropriate medical evaluation rather than delaying care with self-treatment.