Also known as Valeriana officinalis
Herb used since antiquity as a sedative; its valerenic acid is thought to modulate GABA-A receptors, though clinical evidence for reducing time to fall asleep is mixed.
We link to relevant studies and leave interpretation to you and your healthcare professional.
Where people report using it and what trials suggest
Common claims the trials do not support
Traditional sleep herb whose better-controlled trials have failed to separate from placebo; evidence overall is unconvincing.
Safety notes: Morning sedation possible; rare liver-toxicity signal unconfirmed. Avoid with sedatives/alcohol.
Evidence grades reflect study quality and consistency, not marketing claims.
Ordered by strength of evidence, then result direction.
01Effects of Dietary Supplementation in Patients with Restless Legs Syndrome: A Systematic ReviewGonzález-Parejo P, et al. · Nutrients · 2024PMID 39064758 ↗02Medicinal herbs for the treatment of anxiety: A systematic review and network meta-analysisZhang W, et al. · Pharmacological research · 2022PMID 35378276 ↗03A Systematic Review of the Efficacy and Safety of Over-the-Counter Medications Used in Older People for the Treatment of Primary insomniaAlmond SM, et al. · The Senior care pharmacist · 2021PMID 33509331 ↗04Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-AnalysisShinjyo N, et al. · Journal of evidence-based integrative medicine · 2020PMID 33086877 ↗05GABA-modulating phytomedicines for anxiety: A systematic review of preclinical and clinical evidenceSavage K, et al. · Phytotherapy research : PTR · 2018PMID 29168225 ↗06Natural Products from Single Plants as Sleep Aids: A Systematic ReviewKim J, et al. · Journal of medicinal food · 2018PMID 29356580 ↗Associated conditions and community-reported outcomes, wrapped together on one page. Aggregates appear only once enough reports arrive.
How this compound is sold in the UK, and where our readers typically find it.
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