Limited evidenceSleep & relaxation

Mugwort

A bitter Artemisia herb with a long history as a digestive tonic and, in folklore, as a dream herb. There are no clinical trials supporting either use, and mugwort is a well-documented allergen.

Evidence last reviewed: August 2026

What the science says

Vivid dreams and sleep effects Limited evidence
A comprehensive review of the genus Artemisia catalogues traditional uses and preclinical pharmacology but identifies no controlled human trials of Artemisia vulgaris for dreaming, sleep onset or sleep quality. Sedative activity has been shown for other Artemisia species in rodents, which does not transfer automatically to mugwort.
Digestive bitter Limited evidence
The same review documents traditional use of mugwort as a bitter tonic for appetite and digestion, supported by its sesquiterpene lactone content. No randomised trial has tested these digestive endpoints in humans.
Allergenic potential Moderate evidence
An analysis of allergenic risk among Asteraceae medicinal plants places mugwort among the family's significant sensitisers, consistent with its established role in pollen allergy and pollen-food cross-reactivity. This is the best-documented biological effect of the plant in humans.

Dosage & safety

Studied doseNo trial-based dose exists. Traditional use is 0.5–2 g of dried herb as an infusion or 1–2 mL of tincture before meals; capsule labels typically list 300–500 mg.

SafetyMugwort is a major pollen allergen and cross-reacts with birch pollen, celery, carrot, spices and other Asteraceae such as chamomile and ragweed — people with these allergies should avoid it. It has traditional emmenagogue and abortifacient use and must be avoided in pregnancy; avoid while breastfeeding. Thujone-containing preparations should not be used long term or in high doses, and people with epilepsy should avoid it.

Scientific references

Traditional uses, Phytochemistry, Pharmacology, and Toxicology of the Genus Artemisia L. (Asteraceae): A High-value Medicinal Plant
Hussain M, Thakur RK, Khazir J — Curr Top Med Chem, 2024
Allergic Potential of Medicinal Plants From the Asteraceae Family
Ključevšek T, Kreft S — Health Sci Rep, 2025

Where to buy

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