About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
Eclipta is a gentle herb used to nourish the Liver and Kidneys, making it helpful for premature greying of hair, dizziness, ringing in the ears, and lower back weakness. It also cools the Blood and helps control various types of bleeding such as nosebleeds, heavy periods, and blood in the urine. It is most commonly combined with Nü Zhen Zi (privet fruit) in the classical formula Er Zhi Wan.
Herb Category*
Main Actions*
- Nourishes Liver and Kidney Yin
- Cools the Blood and Stops Bleeding
- Darkens the hair and strengthens the teeth
- Clears Heat from the Blood Level
How These Actions Work*
'Nourishes Liver and Kidney Yin' means this herb replenishes the Yin (the cooling, moistening, and nourishing aspect) of the Liver and Kidney organ systems. When Liver and Kidney Yin becomes depleted, common signs include premature greying of hair, dizziness, tinnitus (ringing in the ears), blurry vision, lower back and knee weakness, and loose teeth. Eclipta is sweet and sour in taste, which gives it a tonifying and astringent quality, and its cold nature helps clear the low-grade heat that often accompanies Yin Deficiency. It is one of the gentler Yin tonics and does not cause the heavy, cloying feeling that richer herbs like prepared Rehmannia can.
'Cools the Blood and stops bleeding' means Eclipta clears excess heat from the Blood level, which in TCM is understood as the underlying driver of many types of abnormal bleeding. When heat enters the Blood, it can force blood out of the vessels, causing nosebleeds, blood in the urine, vomiting blood, heavy menstrual periods, or bleeding gums. Because Eclipta is cold in nature and enters the Liver (which stores Blood), it directly addresses this mechanism. It is especially suited to bleeding caused by Yin Deficiency with internal heat, rather than bleeding from trauma or cold conditions.
'Darkens the hair and strengthens the teeth' reflects the classical understanding that the health of hair and teeth depends on adequate Kidney essence and Liver Blood. When Eclipta nourishes Liver and Kidney Yin, hair quality improves and premature greying can be addressed. The classical name 'Mò Hàn Lián' (ink-like dry lotus) comes from the dark juice that flows when the fresh plant is crushed, and this signature was traditionally associated with its ability to darken hair. For loose teeth, Eclipta's Kidney-nourishing action is key, since TCM holds that the Kidneys govern the bones, and the teeth are considered an extension of bone.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Mo Han Lian 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 Mo Han Lian addresses this pattern
Eclipta directly addresses Liver and Kidney Yin Deficiency through its sweet and sour taste combined with its cold thermal nature. The sweet taste nourishes and tonifies the depleted Yin, while the sour taste has an astringent, consolidating effect that helps retain essence. Its cold nature clears the low-grade Empty Heat that typically accompanies Yin Deficiency. By entering both the Liver and Kidney channels, it replenishes the shared Yin resource of these two organ systems (which are linked through the 'Liver and Kidney share the same source' relationship). This restores the Kidney's ability to produce marrow and nourish bone (addressing loose teeth and weak lower back) and the Liver's capacity to nourish the sinews and hair (addressing premature greying and hair loss).
A practitioner would look for one or more of these signs
From Kidney essence and Liver Blood failing to nourish the hair
Kidney Yin failing to nourish the ears
Yin Deficiency with insufficient nourishment reaching the head
Soreness and weakness of the lower back and knees from Kidney Deficiency
Kidney Yin failing to nourish the bones and teeth
Why Mo Han Lian addresses this pattern
Eclipta's cold nature and its affinity for the Liver channel (the organ that stores Blood) allow it to directly cool Blood-level Heat. When pathological heat enters the Blood, it agitates the Blood and forces it out of the vessels, causing various bleeding symptoms. Eclipta cools the Blood to stop this reckless movement. What makes this herb particularly valuable in Blood Heat patterns is that it simultaneously nourishes the underlying Yin. Many bleeding episodes from Blood Heat are accompanied by or caused by Yin Deficiency (the lack of Yin cooling allows heat to build), so Eclipta treats both the branch symptom (bleeding) and the root cause (Yin Deficiency generating Heat).
A practitioner would look for one or more of these signs
Epistaxis from Blood Heat forcing blood upward
Hematuria from heat in the Bladder or lower burner
Excessive uterine bleeding from heat destabilizing the Penetrating and Directing vessels
Hematemesis from Blood Heat in the Stomach or Lung
Why Mo Han Lian addresses this pattern
When Liver and Kidney Yin becomes severely depleted, the body loses its cooling and anchoring capacity, and Empty Heat rises. This generates symptoms like night sweats, hot flashes, dry throat, and restless insomnia. Eclipta's cold nature clears this Empty Heat while its sweet and sour flavours replenish the Yin that is failing to control the Yang. Unlike strongly cold herbs that simply suppress heat (such as Huang Lian), Eclipta addresses the root of Empty Heat by nourishing the Yin that keeps it in check. It is mild enough for long-term use, making it suitable for chronic Yin Deficiency conditions.
A practitioner would look for one or more of these signs
Yin failing to contain fluids at night
Insufficient Yin fluids to moisten the mouth and throat
Empty Heat disturbing the Spirit at night
TCM Properties*
Cold
Sweet (甘 gān), Sour (酸 suān)
Whole plant / Aerial parts (全草 quán cǎo)
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.