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Head-to-head evidence comparison — which supplement is right for you?
Lavender vs Valerian Root: Lavender has the stronger overall evidence (7.2 vs 5.5/10); they're alternatives for reduce anxiety & stress — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Lavender wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
Top outcomes
Verdict
Too few graded studies
1 of 1 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Lavender and Valerian Root have evidence — compare verdict strength side-by-side.
80 mg oral Silexan daily OR aromatherapy inhalation 30–60 min sessions
Evening before bed for sleep and anxiety, Acute use before stressful procedures or events
Oral Silexan capsule (80 mg) for systemic/psychiatric use
300-600mg extract
30-60 minutes before bed
Standardized extract capsules
and 1 more not shown
1–4 weeks
1–3 weeks
4–8 weeks
Acute to 2 weeks
2-4 weeks
2-4 weeks
Next morning
Immediate
Effects of lavender on anxiety: A systematic review and meta-analysis.
Phytomedicine : international journal of phytotherapy and phytopharmacology (2019) · Meta analysis · n=3964
65 RCTs and 25 non-randomised studies were reviewed, and 37 RCTs (3,964 participants) were pooled.
Efficacy of Silexan in patients with anxiety disorders: a meta-analysis of randomized, placebo-controlled trials.
European archives of psychiatry and clinical neuroscience (2023) · Meta analysis · n=1213
Five double-blind placebo-controlled trials of Silexan 80 mg/day for ten weeks in adult outpatients with subthreshold anxiety, mixed anxiety and depressive disorder or generalised anxiety disorder were pooled (n = 1,213).
Efficacy of Silexan in subthreshold anxiety: meta-analysis of randomised, placebo-controlled trials.
European archives of psychiatry and clinical neuroscience (2019) · Meta analysis · n=697
Pooled individual patient data from three placebo-controlled trials in subthreshold anxiety (697 patients), Silexan 80 mg/day for 10 weeks.
Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis
Journal of evidence-based integrative medicine (2020) · Meta analysis · n=6894
In addition, therapeutic benefits could be optimized when it was combined with appropriate herbal partners.
Fixed herbal drug combination with and without butterbur (Ze 185) for the treatment of patients with somatoform disorders: randomized, placebo-controlled pharmaco-clinical trial
Phytotherapy research : PTR (2009) · Rct · n=182
Analysis of the ITT population confirmed these results.
Herbal Medicines in Autism Spectrum Disorder: Therapeutic Potential, Plant Components, and Dosage Guidelines
Alternative therapies in health and medicine (2025) · Review
Passionflower and Valerian Root alleviate anxiety and hyperactivity through GABAergic pathways.
The two points come from two separate placebo-controlled trials, not from one trial comparing doses. 400 mg of aqueous root extract, taken on separate test nights, shortened self-rated sleep latency and improved sleep quality in 128 people, most clearly in poor or irregular sleepers (PMID 7122669). 530 mg of root extract nightly for 30 nights improved Pittsburgh sleep quality scores after heart bypass surgery in 72 patients, with no change in prothrombin time (PMID 33420602). The extracts and populations differ, so the curve is drawn flat and cannot show whether 530 mg does more than 400 mg. The cited meta-analyses found subjective improvement but give no per-trial doses (PMID 17145239, 33086877). No higher nightly dose for sleep was tested in a cited trial.
AI-estimated from published studies. Interpret as directional guidance.
Lavender has a higher evidence score (7.2/10 vs 5.5/10) and wins in 3 of 3 categories.
For reduce anxiety & stress, Lavender has a higher relevance score (90 vs 60).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.