Plum Dragon Herbs

Du Zhong (Eucommia Bark)


Du Zhong, also known as Eucommia Bark, is a traditional Chinese herb that is widely used in traditional Chinese medicine (TCM) for its numerous health benefits. This bark is believed to have properties that can help to regulate the flow of energy in the body and support healthy joint function, making it an important ingredient in many TCM formulas. Du Zhong is commonly used to treat back pain, knee pain, and other joint issues, as well as to support healthy cardiovascular function and boost energy levels.

In TCM, Du Zhong is considered to have a sweet and bitter flavor, and it is often used in combination with other herbs to enhance its effects. This herb is also believed to have anti-inflammatory and pain-relieving properties, and it is commonly used to treat various health conditions, including hypertension and cardiovascular disease. Du Zhong can be found in the form of teas, decoctions, and dietary supplements, and it is often used in conjunction with other herbs to enhance its effects. When incorporating Du Zhong into your daily routine, it is important to follow the recommended dosages and usage instructions and to consult with a traditional Chinese medicine practitioner for personalized recommendations.

High Quality Du Zhong: What does it look like?

Entering the kidney and liver meridians, the elastic rubbery glue that holds this bark together is the key. Eucommia bark is sweet and slightly acrid, and warm in nature. It is a yang tonic herb. High quality Du Zhong is the bark of the Eucommia ulmoides tree. It is usually in the form of thick, irregular pieces with a dark brown to blackish-brown color, with a rough texture and a slightly bitter taste. The bark should be free from any holes or signs of mold or decay, and should have a fresh aroma. It is commonly used in Traditional Chinese Medicine (TCM) for various health benefits, including strengthening the bones, improving blood circulation and reducing stress.

How is Du Zhong prepared and processed?

Eucommia ulmoides, the source of Du Zhong, is native to central and southern regions of China. Eucommia prefers a temperate climate where it receives adequate sunlight exposure and sufficient water supply.  For the best results, Eucommia should be grown in well-drained soil with neutral to slightly acidic pH levels, and protected from strong winds and harsh weather conditions.  Further, adequate fertilization will promote healthy growth. 

In TCM, the process for drying, preparing, and processing Du Zhong is as follows:

  1. Harvesting: Eucommia ulmoides bark is harvested from mature trees in the late autumn or early winter.
  2. Cleaning: The bark is cleaned and peeled to remove impurities.
  3. Drying: The cleaned bark is dried under natural sunlight or in a well-ventilated area.
  4. Sorting: Du Zhong is sorted to remove any impurities and ensure uniformity of quality.
  5. Packaging: The final product is packaged and stored in a cool, dry place to ensure preservation of quality and potency.

It's important to note that the entire process should be conducted with care to maintain the quality and purity of Du Zhong.

Popular Recipe for Du Zhong

A recipe that uses Du Zhong (Eucommia Bark) in Traditional Chinese Medicine is Du Zhong Tea. To make Du Zhong Tea, you will need:

  • 10-15g of dried Du Zhong
  • 1-2 slices of fresh ginger
  • Honey or sugar (optional)


  1. Rinse the Du Zhong and ginger with cold water.
  2. Boil the Du Zhong and ginger in 2-3 cups of water for 10-15 minutes.
  3. Strain the tea and discard the solids.
  4. Sweeten with honey or sugar if desired.
  5. Serve and enjoy the tea warm.

Note: It is important to consult with a licensed TCM practitioner to determine the appropriate dosage of Du Zhong for your specific health needs.

Safety Precautions for the use of Du Zhong

When using and handling Du Zhong, it is important to follow certain precautions to ensure safety. These include:

  1. Consult a licensed practitioner of Traditional Chinese Medicine (TCM) before using Du Zhong, especially if you have a pre-existing medical condition or are taking medication.

  2. Do not exceed the recommended dose. Overdose of Du Zhong can cause side effects such as abdominal pain, nausea, and diarrhea.

  3. Avoid using Du Zhong during pregnancy and breastfeeding.

  4. Keep Du Zhong out of reach of children.

  5. Store Du Zhong in a cool, dry place and away from direct sunlight.

  6. Avoid using Du Zhong in combination with other medications without consulting a healthcare provider.

  7. Discontinue use if you experience adverse reactions such as an allergic reaction, nausea, vomiting, or diarrhea.

By following these precautions, you can reduce the risk of any negative effects from using Du Zhong. 

It’s important to note that this is a general guideline and it’s always best to consult with a healthcare professional or herbalist to determine the right dosage and usage for you

Additional Information about Du Zhong

Common Names: Du Zhong (Eucommia Bark); Eucommia Ulmoides Oliv.; Cortex Eucommiae

PropertiesSweet, warm

Channels Entered: Kidney, Liver

Cautions and Contraindications

***Please note that Du Zhong contains latex and may pose a risk of allergic reaction in those with latex allergies.  For more info on this, see this AcupunctureToday article.*** 

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