Valerian Root

Valerian Root | Xié Cǎo
COMMON NAME (Chinese Name)

Valerian Root (Xié Cǎo)


Valeriana Officinalis


Valerian root supplements are helpful as non-addictive sleep aids for people suffering from mild to moderate insomnia, though it might be necessary to take it for several weeks before there’s any noticeable change in sleep health or quality. The chemicals in valerian root work the same way as those in Xanax and Valium, though notably without many of the side-effects.

Studies repeatedly find that valerian root supplementation results in decreased sleep latency (the amount of time it takes to fall asleep), improved sleep quality, and fewer sleep disturbances. What’s more, taking oral valerian root supplements before sleep appears to change the architecture of a person’s sleep cycle — reducing REM sleep at the beginning of the night and increasing REM sleep later in the night. This is significant because people with clinical depression (and insomnia related to it) often experience too much REM sleep too early in their sleep cycle. The relationship between depression and sleep isn’t well understood, but regulating sleep cycles and sleep architecture may help reduce the symptoms and severity of depression.

Clinically, we find that a certain number of users become stimulated rather than sedated by valerian. This is not reflected in statistics from research studies as it occurs with a small minority of subjects. However, it has been reported for centuries; the Eclectics claimed that it worked best for cold, pale, weak, and depleted patients. Others have found that people whose pupils dilate instead of contracting when a light is shown in their eyes tend to have contradictory reactions to valerian as well as to other herbs.  

Chinese medicine has only recently adopted Valerian.  It categorizes Valerian as a circulatory stimulant (blood mover).  It is warm, moving, aromatic and slightly drying, the latter being based on its expectorant qualities. 

In addition to its uses as a sleep aid, valerian root may also help reduce the severity and frequency of hot flashes in menopausal women. Similarly, valerian root extract may reduce the emotional, behavioral, and physical symptoms of PMS. This is likely because valerian root extract modifies hormonal production and reception in the brain and also has antispasmodic effects, meaning it can reduce the intensity of the smooth muscle contractions that cause period pain.


The dried, shredded roots of valerian plants are often available for purchase, as are pre-made extracts derived from the same components. The roots themselves are often best used for making teas and other hot-water decoctions, while the extract plays a vital role in various OTC valerian capsules.  For sleep applications, one should use valerian extracts that were tinctured from fresh, undried roots as dry root powder (as opposed to dry extract powder) can be stimulating.


Common, yet infrequent side-effects of valerian dosage include headache and weakness, with morning sleepiness and daytime sedation. That said, there is little research into toxicity at high doses, though some studies suggest that overdosing may cause liver damage. Otherwise, valerian root supplements are generally safe for use, though not recommended for use by folks with a history of liver disease or women who are pregnant or nursing.

You should consult with a certified herbalist, physician or other qualified healthcare professional before taking valerian.



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