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Head-to-head evidence comparison — which supplement is right for you?
Lavender vs Passionflower: 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 2 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
0 of 1 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Lavender and Passionflower 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
250-500mg extract (or 2g dried herb) (a typical label dose, the cited trials state their doses only as drops of liquid extract or a cup of tea, not in mg)
For anxiety: as needed, For sleep: 30-60 minutes before bed
Standardized extract capsules
1–4 weeks
1–3 weeks
4–8 weeks
Acute to 2 weeks
30 min - 2 hours
30-60 minutes
30-60 minutes
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.
Herbal Remedies and Their Possible Effect on the GABAergic System and Sleep
Nutrients (2021) · Systematic review
Gamma-aminobutyric acid (GABA) is an inhibitory neurotransmitter that plays a major role in controlling different vigilance states.
Passiflora incarnata in Neuropsychiatric Disorders-A Systematic Review
Nutrients (2020) · Systematic review
The systematic review included nine clinical trials, lasting from one day up to 30 days, in adults.
Herbal medicine for depression and anxiety: A systematic review with assessment of potential psycho-oncologic relevance
Phytotherapy research : PTR (2018) · Systematic review
Overall, 45% of studies reported positive findings with fewer adverse effects compared with conventional medications.
Lavender has a higher evidence score (7.2/10 vs 5.5/10) and wins in 2 of 3 categories.
For reduce anxiety & stress, Lavender has a higher relevance score (90 vs 85).
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.