What is it?
Vervain (Latin name: Verbena officinalis) is a small flowering plant. Its flowers and leaves have been used as a traditional herbal remedy.
How does it work?
This is not known.
Is it effective?
There is no scientific evidence on whether vervain works for depression.
Are there any disadvantages?
Dietary supplements and herbal remedies may produce side effects or have negative interactions with prescribed medications or other supplements. They should always be taken under the supervision of a health care professional.
It may not be safe to use vervain during pregnancy. Because there are no studies which have looked at the use of vervain for depression, we cannot say whether or not there are any other potential side effects.
Where do you get it?
Vervain can be purchased as dried leaves (for making tea) or as liquid drops from some health food shops.
Given the lack of evidence on vervain, it cannot be recommended as a treatment for depression.
Last reviewed and updated: 1 December 2016