Valerian Root

Traditional sleep herb that promotes relaxation, improves sleep quality, and helps manage anxiety and stress naturally

Scientific nameValeriana officinalis FormulaComplex valerenic acids and isovaleric acid Molecular weightVariable bioactive compounds g/mol CASVarious natural compounds

70 absorption score

7 safety / 10

20 USD per month

5 documented interactions

Check it against something

Evidence level B

Valerian Root with:

83 out of 100

Works better together Take together — same timing window amplifies the synergy.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Improved sleep quality and duration

Helps fall asleep faster and improves overall sleep quality

Increases GABA activity promoting relaxation and sleep Evidence B-grade 1-4 weeks

Reduced anxiety and stress

Calms nervous system and reduces anxiety symptoms

GABAergic effects reduce nervous system excitability Evidence B-grade 1-3 weeks

Faster sleep onset

Reduces time needed to fall asleep

Sedative compounds promote drowsiness and sleep initiation Evidence B-grade 1-2 weeks

Reduced sleep disturbances

Decreases nighttime awakenings and improves sleep continuity

Sustained GABA effects maintain sleep throughout night Evidence C-grade 2-4 weeks

Muscle relaxation and tension relief

Reduces muscle tension and physical stress

Muscle relaxant properties reduce physical tension Evidence C-grade 1-2 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Melatonin Sleep support & circadian rhythm 0.5-3mg A 50% Ashwagandha Stress management & energy 300-600mg A 75% Magnesium Glycinate Superior absorption sleep & muscle support 200-600 mg A 90% L-Theanine Calm focus & stress relief 100-400mg B 90% Glycine Sleep quality & collagen support 3-10g A 95% GABA (Gamma-Aminobutyric Acid) Natural relaxation & anxiety relief 250-1000mg C 30%

Every pair we checked

12 combinations scored by the engine

Valerian Root + Caffeine Caffeine may counteract sleep and relaxation benefits Needs attention 52

Valerian Root + Creatine Monohydrate No documented interaction either way No known interaction 70

Valerian Root + Vitamin D3 No documented interaction either way No known interaction 70

Valerian Root + Calcium Carbonate No documented interaction either way No known interaction 70

Valerian Root + Whey Protein No documented interaction either way No known interaction 70

Valerian Root + Lactase No documented interaction either way No known interaction 70

Valerian Root + Bovine Collagen No documented interaction either way No known interaction 70

Valerian Root + DHA No documented interaction either way No known interaction 70

Valerian Root + Turmeric No documented interaction either way No known interaction 70

Valerian Root + Fish Oil (EPA/DHA) No documented interaction either way No known interaction 70

Valerian Root + Magnesium Oxide Enhanced muscle relaxation and sleep quality Works better together 78

Valerian Root + Melatonin Enhanced sleep onset and quality Works better together 83

Dosage

30 60 minutes before bed

Daily300-900mg

Sleep support300-900mg 30-60 minutes before bed

Anxiety relief300-600mg daily

Stress management300-600mg daily

Acute insomnia600-900mg before bed

Before you take it

VeganYes

When to expect it

First Effects1-2 weeks for initial sleep and relaxation benefits

Peak Benefits2-4 weeks for sustained sleep quality improvement

Deficiency DevelopmentReturn to baseline sleep patterns

Toxicity OnsetRare, mainly with very high doses

How to measure it

Not applicable

MarkerNot routinely tested - monitor sleep quality and symptoms

OptimalImproved sleep quality scores and reduced anxiety

Deficient belowNot applicable for supplement

FrequencyMonitor sleep patterns and any sedative medication levels if applicable

What people actually reported to the FDA

CAERS, 23 reports naming it as the suspect

Most reported effects

Nightmare 4

Diarrhoea 3

Pruritus 3

Loss of consciousness 2

Palpitations 2

Named as the suspect 23 reports of 37 that mention it at all

Serious outcome 71% hospitalisation, emergency room or worse

Other Serious or Important Medical Event12

Visited a Health Care Provider7

Hospitalization7

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption High 70 of 100 · absorbs well relative to other forms

Delivered daily 420 mg

Cost per 100 mg delivered $0.16 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Melatonin

Enhanced sleep onset and quality

Both promote sleep through different pathways · level B

Passionflower

Enhanced anxiety reduction and relaxation

Both increase GABA activity for calming effects · level B

Magnesium

Enhanced muscle relaxation and sleep quality

Both support nervous system relaxation · level B

What not to take with Valerian Root

2 documented

Caffeine

Caffeine may counteract sleep and relaxation benefits

Stimulants oppose sedative effects · moderate significance

Alcohol

May enhance sedative effects dangerously

Both depress central nervous system · major significance

Medication interactions

Discuss these with a pharmacist before combining

sedatives-sleep-medications Major

May enhance sedative effects

What to do: Avoid combination or reduce doses significantly

benzodiazepines Major

May enhance sedative and muscle relaxant effects

What to do: Avoid combination

alcohol Major

Dangerous enhancement of sedative effects

What to do: Avoid alcohol when using valerian

Available forms

bioavailability compared

Standardized Valerian Extract (0.8% valerenic acids) 75

Whole Root Extract 70

Valerian Root Powder 60

Valerian Tincture 65

Standardized Valerian Extract (0.8% valerenic acids): Standardized potency, Research backed, Consistent effects, Reduced odor

Whole Root Extract: Complete spectrum, Traditional form, Multiple compounds, More affordable

Valerian Root Powder: Traditional form, Complete plant, Lower cost, Natural

Valerian Tincture: Fast absorption, Traditional preparation, Good potency, Flexible dosing

Food sources

before you supplement

Fresh valerian root Traditional preparation, very strong odor · 55

Valerian extract supplements 300-900mg per capsule · 70-75

Valerian tea Made from dried root, moderate potency · 50

Valerian tincture Alcohol-based extract · 65

Too little

deficiency signs

Not essential - but symptoms addressed by valerian:
Chronic insomnia and poor sleep quality
Anxiety and nervous tension
Difficulty falling asleep
Frequent nighttime awakenings
Muscle tension and physical stress
Restlessness and agitation

Too much

toxicity signs

Generally safe but potential effects:
Excessive daytime drowsiness
Headaches and dizziness
Stomach upset with high doses
Rebound insomnia with withdrawal

Who benefits most

insomnia-sleep-problems

Excellent for improving sleep quality and reducing insomnia

300-900mg before bed

anxiety-stress-management

Effective for reducing anxiety and calming nervous system

300-600mg daily

difficulty-falling-asleep

Specifically helps with sleep onset and falling asleep

300-600mg 30-60 minutes before bed

restless-sleep-frequent-waking

May help improve sleep continuity and reduce awakenings

300-900mg before bed

muscle-tension-stress

Helps relax muscles and reduce physical tension

300-600mg daily

Where to buy it

compare forms first

Look for Valerian Root at 300-900mg per serving. The form that matters here is Standardized Valerian Extract (0.8% valerenic acids).

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What else affects it

Beyond other supplements

Alcohol

May enhance sedative effects dangerously

Both depress central nervous system

How it works

Increases GABA availability and receptor sensitivity
Valerenic acid inhibits GABA breakdown in brain
Enhances adenosine activity promoting sleepiness
Reduces activity in amygdala decreasing anxiety
Muscle relaxant effects reduce physical tension
May influence serotonin and other neurotransmitters

Key findings

what the evidence supports

Good evidence for sleep quality improvement and anxiety reduction
Generally safe for short-term use
Avoid with sleep medications and alcohol
May take 2-4 weeks for full sleep benefits

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Valerian Root?

Documented effects: Improved sleep quality and duration; Reduced anxiety and stress; Faster sleep onset; Reduced sleep disturbances. Helps fall asleep faster and improves overall sleep quality

How much Valerian Root should you take per day?

The common daily range is 300-900mg. By goal — sleep support: 300-900mg 30-60 minutes before bed; anxiety relief: 300-600mg daily; stress management: 300-600mg daily; acute insomnia: 600-900mg before bed.

When is the best time to take Valerian Root?

30 60 minutes before bed. First effects are typically reported within 1-2 weeks for initial sleep and relaxation benefits.

What are the side effects of Valerian Root?

At excessive doses: Generally safe but potential effects:, Excessive daytime drowsiness, Headaches and dizziness, Stomach upset with high doses, Rebound insomnia with withdrawal. Safety rating at normal doses is 7 out of 10.

What should you not take with Valerian Root?

Separate it from Caffeine, Alcohol by two to four hours. Caffeine may counteract sleep and relaxation benefits

Does Valerian Root interact with medications?

Documented interactions with sedatives-sleep-medications, benzodiazepines, alcohol. Discuss these with a pharmacist before combining.

How do you know if you need Valerian Root?

The marker is Not routinely tested - monitor sleep quality and symptoms, optimal range Improved sleep quality scores and reduced anxiety. Common deficiency signs: Not essential - but symptoms addressed by valerian:, Chronic insomnia and poor sleep quality, Anxiety and nervous tension, Difficulty falling asleep.

Taken for

28 Sleep & Stress

Melatonin · Magnesium Glycinate · Ashwagandha