biotech

Bio-Analyst

Research Platform
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Tier-CPublic-ready7/5/2026

Valerian

Stress Response and Sleep Changes is the main area connected here, and any felt benefit should be read together with the human evidence base.

Some human supplement-context evidence is present and directly informs the score.

Representative tier calculated from paper evidence that passed the collection audit.

Papers analyzed
68
Caution signal
Low
Representative score
30.1
Stress Response and Sleep Changes

Main benefit evidence

The representative ingredient tier is calculated from these target-level evidence groups.

Sleep
5 studiesTier-B
Stress Response and Sleep Changes
Fairly consistent positive signal in studiesFelt benefit focusSupplement context

These findings come from stress response, cortisol, anxiety, or sleep outcomes. They may mix felt benefits with physiological markers.

Evidence score
50.3
Study context
Supplement context

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Recent research

Updated This Month10 new papers

Observed range in repeated studies

This range includes studies in specific patient groups. It is not a general dose or recommendation.

Lower observed study value
300
mg/day
Higher observed study value
1410
mg/day
Only ranges repeated in human, oral, single-ingredient studies are shown.
Not personal dosing instructions, recommendations, or safety limits.

Side effects and combination findings in studies

Findings from studies of this ingredient alone are separated from findings involving another supplement or medication.

Caution index
0.9
Caution band: Low
Caution signals
1
Side effects + combos + curated rules
Key precautions
No curated contraindication rule is available yet, but literature caution signals are shown below.
These are signals reported in studies. They do not predict what will happen to an individual.

Findings to review with care

Side effects reported for the ingredient alone are separated from findings involving another supplement or medication.

Side effects reported when this ingredient was used alone

Symptoms or adverse events reported in studies of this ingredient without another active ingredient.

Somnolence1 papers
Somnolence was reported as a significantly more frequent side effect in the Valeriana Officinalis L. group compared to placebo (P=0.02).Human studies · Randomized controlled trial

Evidence summaries

Paper IDs and full lists are private. Only study types and summaries are shown.

Key Evidence #1
Public scholarly dataCitation signal: 401
review

[Abstract]: Insomnia affects approximately one-third of the adult population and contributes to increased rates of absenteeism, health care use, and social disability. Extracts of the roots of valerian (Valeriana officinalis) are widely used for inducing sleep

Key Evidence #2
Public scholarly dataCitation signal: 268
rct

[Abstract]: Phytochemical-mediated modulation of cytochrome P450 (CYP) activity may underlie many herb-drug interactions. Single-time point phenotypic metabolic ratios were used to determine whether long-term supplementation of goldenseal ( Hydrastis canadensi

Key Evidence #3
Public scholarly dataCitation signal: 193
observational

[Abstract]: Valerian extracts have been used for centuries to alleviate restlessness and anxiety albeit with unknown mechanism of action in vivo. We now describe a specific binding site on GABA(A) receptors with nM affinity for valerenic acid and valerenol, co

3 more summariesLimited representative sample by study type.
>
Public scholarly dataCitation signal: 157
observational

[Abstract]: Insomnia is the most frequently encountered sleep complaint worldwide. While many prescription drugs are used to treat insomnia, extracts of valerian (Valeriana officinalis L., Valerianaceae) are also used for the treatment of insomnia and restless

Public scholarly dataCitation signal: 104
meta-analysis

[Abstract]: Sleep problems are widely prevalent and associated with various comorbidities including anxiety. Valerian (Valeriana officinalis L.) is a popular herbal medicine used as a sleep aid, however the outcomes of previous clinical studies are inconsisten

Public scholarly dataCitation signal: 90
rct

[Abstract]: To test the effects of nightly valerian (Valeriana officinalis) extract to improve sleep of older women with insomnia. Participants in this phase 2 randomized, double-blind, crossover controlled trial were 16 older women (mean age=69.4+/-8.1 years)

Valerian
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