Does valerian work?

Overall Effectiveness Rating for Valerian

The overall effectiveness rating for valerian is 2 out of 3. This rating means there is some evidence that using valerian may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for Valerian

There are 3 studies in the database on valerian; the confidence rating is 60. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for valerian as a whole. There are also individual ratings for the claims below.

Products Containing Valerian

Products Containing Valerian
Rack OPS
Lights Out Sleep
Procera Sleep
Super Bio Sleep
Full list of all 9 products containing Valerian.

Individual Claims

The overall ratings above do no necessarily reflect each claim about valerian. Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

General Health Claims Effectiveness Rating Confidence Rating
improve sleep quality


Title of Study
A randomized clinical trial of valerian fails to improve self-reported, polysomnographic, and actigraphic sleep in older women with insomnia
Effect of valerian on sleep quality in postmenopausal women: a randomized placebo-controlled clinical trial
The Use of Valeriana Officinalis (Valerian) in Improving Sleep in Patients Who Are Undergoing Treatment for Cancer: A Phase III Randomized, Placebo-Controlled, Double-Blind Study