Herb Herbs that cool the Blood

Di Gu Pi

Goji tree root bark | 地骨皮

Lycium chinense or Lycium barbarum

TCM Properties

Temperature

Cold

Taste

Sweet

Organ Affinity

Kidneys, Liver, Lungs

Parts Used

Dried root bark

TCM Actions & Uses

Traditional Chinese Medicine properties and applications of Di Gu Pi

Traditional Actions

Cool the Blood
Clear Lung Heat
Clear steaming Heat from bones

Key TCM Concepts

In Traditional Chinese Medicine (TCM), Di Gu Pi belongs to the 'Herbs that cool the Blood' category. Herbs in this category are used to clear inflammatory and infectious conditions, referred to as 'Internal Heat' in TCM. This is why most of the herbs in this category will have both antibacterial and antiviral properties. In TCM one has too much 'Internal Heat' in their body as a result of a deficiency of 'Yin' (which is Cold in nature, see our explanation on Yin and Yang) or, more commonly, an Excess of Yang (Hot in nature). Herbs that cool the Blood treat the latter and as such tend to be Cold or Neutral in nature.

 

As suggested by its category Di Gu Pi is Cold in nature. This means that Di Gu Pi typically helps people who have too much 'Heat' in their body. Balance between Yin and Yang is a key health concept in TCM. Those who have too much Heat in their body are said to either have a Yang Excess (because Yang is Hot in nature) or a Yin deficiency (Yin is Cold in Nature). Depending on your condition Di Gu Pi can help restore a harmonious balance between Yin and Yang.

 

Di Gu Pi also tastes Sweet. The so-called 'Five Phases' theory in Chinese Medicine states that the taste of TCM ingredients is a key determinant of their action in the body. Sweet ingredients like Di Gu Pi tends to slow down acute reactions and detoxify the body. They also have a tonic effect because they replenish Qi and Blood.

 

The tastes of ingredients in TCM also determine what Organs and Meridians they target. As such Di Gu Pi is thought to target the Kidney, the Liver and the Lung. According to TCM, the Kidneys do not only regulate the urinary system but also play a key role in the reproductive system and the growth and aging process of the body. The Liver on the other hand is often referred as the body's "general" because it is in charge of regulating the movements of Qi and the Body Fluids. It also takes a leading role in balancing our emotions. In addition to performing respiration, the Lungs are thought in TCM to be a key part of the production chain for Qi and the Body Fluids that nourish the body.

Common Applications

Hemoptysis Nosebleed Night sweats Cough and wheezing with yellow sputum Blood in urine Bloody sputum Vomiting blood Toothache Diabetes mellitus Hypertension

Research Studies

Scientific research and clinical studies on Di Gu Pi

Diabetic rats treated with ethanol extracts of Cortex Lycii Radicis had better improvement in insulin resistance1

Lycii Radicis Cortex (LRC) extract prevented OVX-induced bone mass density loss in mice2

Sources:

1. Ye Z, Huang Q, Ni H, Wang D. (2008) Cortex Lycii Radicis extracts improve insulin resistance and lipid metabolism in obese-diabetic rats. Phytother Res. 22(12):1665-70

2. Park E, Jin H, Cho D, Kim J, Kim M, Choi C, Jin Y, Lee J, Park J, Chung Y, Huh D, Jeong S. (2014) The effect of Lycii Radicis Cortex extract on bone formation in vitro and in vivo. Molecules 19(12):119594-609

Preparation & Dosage

Traditional and modern methods for preparing Di Gu Pi

Traditional Preparation

Wash the root and remove impurities. Extract the bark from the root and dry it, preferably under the sun.

Recommended Dosage

Note: The following information is provided for educational purposes only and is not meant to replace professional medical advice.

6 - 12 grams

Safety & Contraindications

Important safety information and precautions for Di Gu Pi

This information is for educational purposes only. Always consult with a qualified healthcare provider before using any herb or supplement.

Herb-Drug Interactions

Like many herbs, Di Gu Pi may interact with certain medications. If you are taking any prescription medications, we recommend consulting with a healthcare provider knowledgeable in herb-drug interactions.

Related Educational Resources

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