StackTerminal.Health

BETA

Valerian

Traditional sleep & anxiety herb; meta-analyses show modest sleep quality improvements but high trial heterogeneity.

sleepstresscalm
Evidence last reviewed: 04 Apr 2026
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Trade-offs & context
Known concerns, timing considerations, & interactions
Timing

Significant drowsiness — do not drive or operate heavy machinery after use

Interaction

Additive CNS depression with benzodiazepines, alcohol, and other sedatives — do not combine

Neural

Paradoxical stimulation and vivid dreams in a minority of users

Dot colour: High concern  Moderate   Low / note
Biomarkers studied
Outcomes directly measured across the evidence records below
Sleep
Sleep Quality (subjective)Sleep Latency
Evidence
1 record
Sleep quality / sleep latency
Adults with mild insomniaMeta-analyses of RCTs
PUBMEDModerate

Subjective sleep quality improvements in several trials; objective measures (polysomnography) less consistent.

Dose: 450 mgDuration: 2–4 weeks
Take 30–60 min before bed; may need 2+ weeks for full effect.
Forms
Valerian root extract (0.8% valerenic acid)
Standardised extract.
Valerian + hops
Common combination for sleep.

Stacks containing Valerian

Public community stacks that include this ingredient.

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sleeprecoverycalm

Combining Valerian with Magnesium L-Threonate can enhance sleep quality and promote recovery. Valerian is known for its calming effects, while Magnesium L-Threonate supports relaxation and cognitive recovery.

Valerian
500mg
Magnesium L-Threonate
1500mg
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