About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
One of the most prized Blood-nourishing substances in Chinese medicine, E Jiao is a gelatin made from donkey hide. It is widely used for blood deficiency conditions such as anemia and dizziness, various types of bleeding, dry cough, and restless insomnia due to Yin depletion. It has been considered a "blood tonic treasure" alongside ginseng and deer antler for over two thousand years.
Herb Category*
Main Actions*
- Nourishes Blood
- Stops Bleeding
- Nourishes Yin
- Moistens Dryness
- Moistens the Lungs
- Calms the Fetus
How These Actions Work*
'Tonifies Blood' means E Jiao directly nourishes and replenishes the Blood. As a 'blood-and-flesh' substance (a product derived from an animal rather than a plant), it has a special affinity for building Blood. This makes it particularly valuable for people with pale complexion, dizziness, heart palpitations, and fatigue caused by Blood deficiency. It is often considered the strongest single Blood-tonifying substance in the materia medica.
'Stops bleeding' refers to E Jiao's ability to help control various forms of abnormal bleeding, including coughing up blood, nosebleeds, blood in the stool or urine, and heavy or prolonged menstrual bleeding. Its sticky, glutinous quality is thought to help seal and consolidate the blood vessels. It is especially suited for bleeding that occurs alongside Blood deficiency or Yin deficiency, since it addresses both the symptom (bleeding) and the underlying weakness simultaneously.
'Nourishes Yin and moistens dryness' means E Jiao replenishes the body's fluids and moisture. This is why it is used for conditions involving internal dryness or depleted Yin, such as restlessness and insomnia after a prolonged fever, or dry cough with little or no phlegm. By restoring Yin fluids, it can also calm internal wind that arises from severe Yin exhaustion, helping to address tremors or spasms in late-stage febrile illness.
'Moistens the Lungs' means E Jiao specifically soothes and nourishes Lung tissue. When the Lungs are too dry or depleted of Yin, a persistent dry cough or coughing of blood can result. E Jiao's rich, moistening nature directly addresses this dryness, which is why classical physicians called it "an essential medicine for the Lung channel."
'Calms the fetus' refers to its traditional use for threatened miscarriage or bleeding during pregnancy. By nourishing Blood and stabilizing the Chong and Ren vessels (the channels closely linked to reproductive function), it helps secure the pregnancy.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. E Jiao is traditionally associated with these specific patterns.
The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.
Why E Jiao addresses this pattern
E Jiao is considered a premier Blood-tonifying substance. Its sweet taste nourishes and supplements, while its neutral temperature makes it suitable for Blood deficiency without generating excess Heat or Cold. As a 'blood-and-flesh' product, it has a particularly strong affinity for building Blood substance. It enters the Liver channel (the organ that stores Blood) and directly replenishes Blood volume and quality, addressing the root cause of this pattern.
A practitioner would look for one or more of these signs
Pale or sallow complexion
Dizziness and lightheadedness
Palpitations from insufficient Blood to nourish the Heart
Difficulty sleeping due to Blood failing to anchor the spirit
Why E Jiao addresses this pattern
E Jiao enters the Lung channel and has a rich, moistening quality that directly nourishes Lung Yin. When the Lungs are depleted of Yin and fluids, dryness and Heat can damage the delicate Lung tissue, causing persistent dry cough or coughing of blood. E Jiao's sweet, neutral nature replenishes the Yin fluids that moisten the Lungs without introducing Cold that might damage the Spleen, making it especially well-suited for chronic Lung dryness patterns.
A practitioner would look for one or more of these signs
Chronic dry cough with little or no phlegm
Coughing blood or blood-streaked sputum
Dry throat and nose
Why E Jiao addresses this pattern
When Yin is severely depleted, it can no longer control Yang, and 'empty Fire' flares upward. E Jiao enters the Kidney and Liver channels and powerfully nourishes Yin to restore the Yin-Yang balance. By replenishing the 'water' that keeps 'fire' in check, it helps resolve restlessness, insomnia, and the feverish sensation that accompanies Yin deficiency. This is demonstrated in its role within Huang Lian E Jiao Tang, where it nourishes Kidney Yin while Huang Lian clears Heart Fire.
A practitioner would look for one or more of these signs
Severe insomnia and restlessness
Night sweats from Yin failing to contain fluids
Dry mouth and throat
Restless agitation and irritability
Why E Jiao addresses this pattern
When the Chong and Ren vessels are weakened and cannot properly contain Blood, abnormal uterine bleeding results. E Jiao's combined ability to tonify Blood and stop bleeding makes it uniquely suited for this pattern, as it addresses both the bleeding itself and the underlying Blood deficiency that worsens with each episode. Its sticky, consolidating nature helps seal the vessels, and when combined with warming herbs like Ai Ye (mugwort leaf), it can address both the deficiency and any accompanying Cold that fails to hold Blood in the vessels.
A practitioner would look for one or more of these signs
Heavy or prolonged menstrual bleeding, or bleeding between periods
Persistent spotting or dripping blood
Vaginal bleeding during pregnancy with abdominal pain
TCM Properties*
Neutral
Sweet (甘 gān)
Processed / Derived product (加工品 jiā gōng pǐn)
This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.