Evidence supporting the use of: Vervain
For the health condition: Colds (prevention)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Vervain (Verbena officinalis and related species) has a long history of traditional use in European herbal medicine, including as a remedy for respiratory conditions such as colds and coughs. Historically, vervain was often brewed as a tea or infusion and taken to "ward off" or alleviate symptoms of colds, sore throats, and fevers. Folk medicine systems attributed to it "expectorant" and "diaphoretic" properties, suggesting it could promote sweating and help clear mucus.

However, modern scientific evidence substantiating vervain’s efficacy for the prevention or treatment of colds is scant. Few clinical studies have investigated vervain specifically for colds or upper respiratory tract infections. Much of its traditional reputation relies on anecdotal reports and historical texts rather than controlled research. The herb does contain some bioactive compounds, such as iridoids and flavonoids, which have been studied for general anti-inflammatory or immunomodulatory effects in vitro or in animal models, but these findings have not been directly translated into proven clinical benefits for colds in humans.

In summary, vervain’s use for cold prevention is primarily supported by traditional use, with little to no scientific validation. The evidence rating is therefore low (1), reflecting historical use without strong modern research support.

More about Vervain
More about Colds (prevention)

Other ingredients used for Colds (prevention)

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Products containing Vervain

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