Valerian Root 4:1
herbs
Valerian Root 4:1 is a concentrated herbal extract standardised to a 4:1 ratio, traditionally used to promote relaxation and support sleep quality. This potent formulation contains valerenic acids and other bioactive compounds that may help reduce anxiety and encourage restful sleep.
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Benefits
Dosage
Typical Dose
400-900 mg daily
Upper Limit
2,000 mg daily
Timing
30-120 minutes before bedtime or as needed for anxiety
Forms & Bioavailability
Standardised extract powder
High bioavailability due to 4:1 concentration; superior to whole root preparations
Capsule
Good bioavailability; convenient dosing and consistent delivery
Tincture
Rapid absorption; liquid form allows flexible dosing
Side Effects
Interactions
Research Summary
Clinical evidence supports valerian's efficacy for mild insomnia and anxiety, with multiple randomised controlled trials demonstrating modest improvements in sleep latency and quality. The 4:1 extract format provides higher concentrations of active compounds, though long-term safety remains a concern with potential hepatotoxicity reported in some cases. Additional research is needed to establish optimal dosing protocols and identify responder populations.
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The Bottom Line on Valerian Root 4:1
Valerian Root 4:1 is moderately researched with promising but sometimes mixed evidence.It is most commonly used for sleep quality improvement and anxiety reduction. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Valerian Root 4:1
See how Valerian Root 4:1 can help with specific health goals: