< LEADERBOARD/s/valerianBotanicals & sleep

Valerian

Also sold as: Valeriana officinalis · Valerian root · Valerian extract

A root preparation taken for sleep and tension. Subjective sleep improvement is possible, while objective sleep measurements are much less convincing.

Sleep Anxiety

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NERD_PROTOCOL // EVIDENCE_MATRIXper goal

Research

SleepLimited · benefit AnxietyLimited · benefit

Sleep: A subjective sleep-quality signal is weakened by publication bias, formulation differences and largely null objective measurements.
Anxiety: Small pilot and dental-procedure trials suggest possible effects; these do not establish treatment efficacy for an anxiety disorder.

REALITY CHECK // Feeling that sleep improved does not prove measurable sleep architecture or latency improved. The literature is heterogeneous and prone to bias, with several explicitly negative RCTs. Valerian is not an evidence-equivalent replacement for benzodiazepines, and natural origin does not remove sedation or rare liver-safety concerns.

Levels: how we grade evidence. Grey = evidence of no benefit; amber = evidence it makes this goal worse.

Ratings are self-reported by a self-selected group of users: how it felt, not proof that it works.

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Check your bottle

Compare what your label says with what was used in trials. This is a trial range, not a personal prescription.

Enter the amount from your label to see the result.

How it was studied

01 // STUDIED_DOSE_RANGE

300-600 mg extract in sleep research

Extract mass only; root powder, tincture volume and mixtures are not equivalent.

02 // TIMING_&_MATRIX

Night-time trial use

The dossier does not establish a precise universal pre-bed interval or a fasting advantage. Avoid alcohol and driving after dosing.

03 // EVALUATION_WINDOW

Days to weeks

Short-term studies predominate; there is no established indefinite-use protocol.

04 // SAFETY_&_QUALITY_GATE

Check formulation and sedation

Look for root identity, extraction details and marker declaration; note all additional sedatives.

UPPER LIMIT // No EFSA or NIH nutrient tolerable upper intake level is established for valerian in this dossier. The 300-600 mg extract range describes trials, not a maximum safe dose or long-term ceiling.

NERD'S NOTENerd Protocols · a clinical and sports dietitian based in the EU

Summary

A 2006 synthesis of 16 trials and 1093 participants reported subjective sleep improvement RR 1.8 (95% CI 1.2-2.9), with publication bias and weak methods. A 2024 umbrella review found a signal for subjective sleep quality without convincing quantitative or objective improvement. Trials in older women, cancer patients and general-practice insomnia were negative.

Mechanism

Valerian constituents, including valerenic acids, are studied for GABA-related and smooth-muscle effects. These mechanisms are hypotheses for clinical effects, not evidence that a root capsule works like a benzodiazepine.

Typical studied dose

Sleep research commonly used about 300-600 mg of extract daily over days to weeks. Extract solvent, marker content and preparation varied. Tea, tincture and multi-ingredient mixtures cannot be equated to this range by total product weight.

Upper limit

No EFSA or NIH nutrient tolerable upper intake level is established for valerian in this dossier. The 300-600 mg extract range describes trials, not a maximum safe dose or long-term ceiling.

POPULAR_STACKScombos with n ≥ 5

Popular stacks with Valerian

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Forms and label traps

Forms compared
Form on label	Active content	Studied range / day	Absorption & GI tolerance	Verdict
Valerian root extract with declared standardization Best for: Checking extract mass against sleep-study ranges.	Extract weight · marker not quantified	300–600 mg	Most commonly studied preparation, with heterogeneous extraction and marker content. Usually tolerated; occasional stomach discomfort.	Studied standard [DOSSIER // REFERENCE] PMID 12568976
Dried root or tea infusion Best for: A tea preparation with explicitly uncertain clinical equivalence.	Unstandardized: active content unknown	no comparable trial range	Constituent delivery depends on root and brewing. Usually tolerated; strong odor can limit use.	Caution [DOSSIER // CHECK_FORM] No extract-to-root ratio or standardized tea dose is established in the supplied data.
Ethanol tincture or liquid extract Best for: People assessing a liquid label.	Unstandardized: active content unknown	no comparable trial range	Solvent changes constituent profile; concentration varies. Contains ethanol; tolerability is formulation-dependent.	Caution [DOSSIER // CHECK_FORM] No mL-to-mg or dry-herb ratio can be assumed. Alcohol content adds a relevant exposure.
Valerian with hops, passionflower or other sedatives Best for: Identifying every ingredient before using a sleep blend.	Unstandardized: active content unknown	no comparable trial range	Combination effects cannot be assigned to valerian alone. Sedation may be additive.	Caution [DOSSIER // CHECK_FORM] No single total-blend mg target is defensible.

Common label traps

TRAP_01 // A NATURAL BENZODIAZEPINE REPLACEMENT
Small heterogeneous studies do not establish equivalence to prescribed sedatives; changing those drugs requires medical supervision.
TRAP_02 // SUBJECTIVE SLEEP PROVES DEEPER SLEEP
Objective polysomnography and actigraphy outcomes were largely null, despite some subjective improvement.
TRAP_03 // A STRONGER BLEND PROVES VALERIAN WORKS
Hops, melatonin or other ingredients confound attribution and can add next-day sedation.

Other outcomes studied

Outside the five leaderboard goals. Same evidence levels as above.

OBJECTIVE SLEEP Limited · no benefit
Several RCTs and the umbrella review did not demonstrate convincing quantitative sleep improvement, including older women with insomnia.
PMID 18482867 PMID 21399726 PMID 15022653 PMID 38359657
MENOPAUSAL HOT FLASHES Limited · benefit
Small trials suggested reduced severity or frequency in menopausal women; larger confirmation is missing.
PMID 24250592 PMID 28278010
PRIMARY DYSMENORRHEA Limited · benefit
A small trial and a 2025 synthesis suggest symptom relief; study quality is limited and in-vitro relaxation is not a proven clinical mechanism.
PMID 21959068 PMID 40965071
RESTLESS LEGS SYNDROME Limited · benefit
A small pilot suggests possible symptom or sleepiness improvement, but evidence is insufficient for an established treatment.
PMID 19284179

Reader questions

Why do tea and capsule products feel different?

They differ in extraction solvent, concentration and constituent profile. Without marker and ratio information, similar label weights need not represent similar exposure.

Does it work beyond placebo?

Some people report better sleep in trials, but publication bias, weak methods and largely null objective measures keep confidence low.

Can I use it every night indefinitely?

Long-term safety, tolerance and withdrawal are poorly characterized. Discuss chronic use or tapering with a clinician, particularly before surgery.

What about nightmares or a groggy morning?

Vivid dreams, dizziness and next-day drowsiness appear in reader reports, which cannot estimate incidence or prove causality. Do not drive while impaired.

Stack interactions

Danger Alcohol, benzodiazepines, hypnotics and opioids [CAUTION // REVIEW_WITH_CLINICIAN]
Additive CNS depression is a safety concern. The driving study assessed subjective sedation and performance; it does not quantify every combination risk.
PMID 27110643
Danger Anesthesia and planned surgery [CAUTION // REVIEW_WITH_CLINICIAN]
Disclose regular valerian use. Perioperative reviews discuss enhanced sedation and withdrawal concerns after abrupt stopping of chronic use; coordinate any taper with the clinical team.
PMID 11448284 PMID 12190754
Caution CYP3A4 and CYP2D6 substrates [CAUTION // REVIEW_WITH_CLINICIAN]
Repeated evening doses had minimal CYP3A4 effects and no CYP2D6 effect in healthy volunteers. Narrow-therapeutic-index medicines still warrant review.
PMID 15328251
Caution Other sedating supplements [CAUTION // REVIEW_WITH_CLINICIAN]
Hops, passionflower, lemon balm, melatonin and other sleep products can complicate attribution and add drowsiness; synergy is not established.

Red flags: interactions and who should avoid it

Interactions

Possible additive sedation with benzodiazepines, hypnotics, opioids, alcohol and other sedating supplements warrants clinician review. Tell the anesthesia team about regular use and discuss gradual discontinuation rather than abrupt withdrawal. In healthy volunteers, repeated night-time doses minimally affected CYP3A4 and did not affect CYP2D6; laboratory interaction fears should not be presented as proven major interactions.

Avoid or ask a doctor first if

Avoid unsupervised use in pregnancy, breastfeeding or children because adequate safety data are absent. Caution with liver disease and driving or machinery after dosing. Rare liver-injury reports often involve mixtures and uncertain causality. Marked sedation, dizziness, jaundice or other suspected liver-injury symptoms warrant stopping and medical assessment; chronic-use withdrawal concerns require a clinician-led plan.

Sources (PubMed, 19)

Valerian for sleep: a systematic review and meta-analysis.
PMID 17145239 · 2006 · systematic review and meta-analysis
Sixteen-trial subjective sleep-improvement synthesis, with publication bias and methodological limitations.
Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis.
PMID 33086877 · 2020 · systematic review and meta-analysis
Heterogeneous sleep-preparation evidence and subjective improvement signal.
Effectiveness of Valerian on insomnia: a meta-analysis of randomized placebo-controlled trials.
PMID 20347389 · 2010 · systematic review and meta-analysis
Placebo-controlled insomnia trial synthesis with inconsistent outcomes.
Does valerian work for insomnia? An umbrella review of the evidence.
PMID 38359657 · 2024 · systematic review and meta-analysis
Umbrella review distinguishing subjective sleep quality from unproven objective improvement.
A randomized clinical trial of valerian fails to improve self-reported, polysomnographic, and actigraphic sleep in older women with insomnia.
PMID 18482867 · 2009 · randomized controlled trial
Negative self-report, polysomnographic and actigraphic trial in older women.
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 (NCCTG Trial, N01C5).
PMID 21399726 · 2011 · randomized controlled trial
Negative primary sleep findings in a phase III cancer-treatment population.
Valerian does not appear to reduce symptoms for patients with chronic insomnia in general practice using a series of randomised n-of-1 trials.
PMID 15022653 · 2003 · randomized controlled trial
Negative general-practice chronic-insomnia n-of-1 trial series.
Effect of valepotriates (valerian extract) in generalized anxiety disorder: a randomized placebo-controlled pilot study.
PMID 12410546 · 2002 · randomized controlled trial
Small placebo-controlled anxiety pilot; not definitive efficacy.
Effects of Passiflora incarnata and Valeriana officinalis in the control of anxiety due to tooth extraction: a randomized controlled clinical trial.
PMID 38743126 · 2024 · randomized controlled trial
Procedure-specific anxiety RCT, with limited generalizability.
The effects of valerian root on hot flashes in menopausal women.
PMID 24250592 · 2013 · randomized controlled trial
Small menopausal hot-flash trial signal.
The effect of Valerian on the severity and frequency of hot flashes: A triple-blind randomized clinical trial.
PMID 28278010 · 2018 · randomized controlled trial
Small triple-blind menopausal hot-flash trial.
Effects of valerian on the severity and systemic manifestations of dysmenorrhea.
PMID 21959068 · 2011 · randomized controlled trial
Primary dysmenorrhea symptom trial.
Effect of Valeriana officinalis on Primary Dysmenorrhea: A Systematic Review and Meta-Analysis.
PMID 40965071 · 2025 · systematic review and meta-analysis
Dysmenorrhea systematic synthesis with a small underlying evidence base.
Does valerian improve sleepiness and symptom severity in people with restless legs syndrome?
PMID 19284179 · 2009 · randomized controlled trial
Exploratory restless-legs symptoms and sleepiness research.
Efficacy and tolerability of valerian extract LI 156 compared with oxazepam in the treatment of non-organic insomnia--a randomized, double-blind, comparative clinical study.
PMID 12568976 · 2002 · randomized controlled trial
Studied valerian extract preparation; comparative trial does not establish every product as benzodiazepine-equivalent.
Effects of valerian on subjective sedation, field sobriety testing and driving simulator performance.
PMID 27110643 · 2016 · randomized controlled trial
Subjective sedation and driving/sobriety-performance safety study.
Herbal medicines and perioperative care.
PMID 11448284 · 2001 · narrative review
Perioperative herbal-medicine safety review.
The peri-operative implications of herbal medicines.
PMID 12190754 · 2002 · narrative review
Perioperative sedation and withdrawal considerations.
Multiple night-time doses of valerian (Valeriana officinalis) had minimal effects on CYP3A4 activity and no effect on CYP2D6 activity in healthy volunteers.
PMID 15328251 · 2004 · clinical study
Healthy-volunteer study of minimal CYP3A4 and absent CYP2D6 effects.

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