Educational information, not medical advice — ask your doctor or midwife.
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Ye Jiao Teng is the dried vine stem of the plant Polygonum multiflorum. In Chinese medicine it is given mainly to settle the mind and help people sleep through the night. It is also boiled and used as a skin wash for itching.
This is a single herb, not a blend. In practice it is almost always combined with other herbs in a formula, most often for someone who lies awake, wakes often, or has restless dreams. It is also known as Flowery Knotweed Vine or Fleeceflower Stem.
It comes from the same plant as He Shou Wu, which is the root. That matters for safety, because this plant has been linked to liver injury in some people.
On the evidence: traditional standing in Chinese medicine is long and steady, but good human trials of this herb on its own are essentially missing. Traditional use tells you what people have done for centuries; it is not proof that the herb works, and we do not repeat that point in every section below.
Nobody has shown clearly how Ye Jiao Teng works in the body. Any account of it is a best guess, not settled fact.
In Chinese medicine terms, it is said to nourish the blood, calm the spirit, and open the channels. Those are traditional ideas, not statements about body chemistry.
Laboratory and animal studies suggest the plant contains compounds that may act on the nervous system and reduce inflammation (swelling and irritation in tissue). Those findings come from cells and rodents. They do not tell you what happens when a person drinks a cup of the decoction (a strong water extract made by simmering the herb).
You will usually meet Ye Jiao Teng in one of these forms:
Dried cut stem, sold loose, to be simmered into a decoction (a strong tea made by boiling the herb).
Granules or powdered extract, stirred into hot water.
Part of a ready-made Chinese patent formula, in pill or capsule form.
A large batch of decoction cooled and used as a skin wash or bath additive.
Tinctures (alcohol extracts) exist but are not the traditional way this herb is used.
Ye Jiao Teng has been used in Chinese medicine for centuries. The name means roughly "night-interlocking vine", from the old belief that the vines twine together after dark. That image is why the herb became linked with sleep.
It appears in Chinese herbal writing from the Ming dynasty onward, listed alongside He Shou Wu, the root of the same plant. It remains a standard stock item in Chinese pharmacies today.
It is a staple of one tradition rather than a herb shared across many, which is how it is graded here.
Some reactions to Ye Jiao Teng need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.
Stop taking it and get medical help the same day if your skin or the whites of your eyes turn yellow, your urine goes dark, your stools turn pale, or you feel very tired and sick with pain under your right ribs. These can be signs of liver injury.
Go to an emergency department if you have trouble breathing, swelling of the face, lips or throat, or a spreading rash after taking it.
See your doctor if you bruise or bleed more easily than usual, or if stomach upset or diarrhoea does not settle after you stop.
Also see your doctor if your sleep problem lasts more than a few weeks. Long-term poor sleep can have a cause that needs treating, such as sleep apnoea (breathing pauses during sleep), depression or a thyroid problem.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
Reviewed by the HealisticMD editorial team How we grade evidence →
The published evidence for Ye Jiao Teng is weak or absent. That usually means no controlled trial has tested it, not that a trial found it ineffective — the two are different, and we grade only what has been published.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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