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Head-to-head evidence comparison — which supplement is right for you?
Lavender and Rhodiola Rosea are closely matched across evidence, studies, and safety.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
5 of 7 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Lavender and Rhodiola Rosea 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
200-600mg daily
Morning on empty stomach, Before stressful events
Standardized to 3% rosavins and 1% salidroside
1–4 weeks
1–3 weeks
4–8 weeks
Acute to 2 weeks
1 week
1-2 weeks
1 week
First dose
Effects of lavender on anxiety: A systematic review and meta-analysis.
Phytomedicine : international journal of phytotherapy and phytopharmacology (2019) · Meta analysis
Meta-analysis confirmed significant anxiolytic effects of lavender across multiple administration routes
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
Silexan 80 mg/day was significantly superior to placebo in reducing Hamilton Anxiety Rating Scale (HAMA) total scores
Efficacy of Silexan in subthreshold anxiety: meta-analysis of randomised, placebo-controlled trials.
European archives of psychiatry and clinical neuroscience (2019) · Meta analysis
Silexan 80 mg/day significantly reduced HAMA scores compared to placebo in subthreshold anxiety
Efficacy of Pharmacological Interventions in Milder Depression: A Systematic Review and Meta-Analysis
Neuropsychopharmacology reports (2025) · Meta analysis · n=1049
A meta-analysis found no significant difference in response rates between the two treatments (risk ratio [RR] = 0.96, 95% CI: 0.78-1.18) or dropout rates (RR = 1.08, 95% CI: 0.62-1.88).
Rhodiola rosea supplementation on sports performance: A systematic review of randomized controlled trials
Phytotherapy research : PTR (2023) · Systematic review · n=263
Acute supplementation with RR has a positive effect on endurance performance and rating of perceived exertion (RPE).
Modulation of the hypothalamic-pituitary-adrenal (HPA) axis by plants and phytonutrients: a systematic review of human trials
Nutritional neuroscience (2022) · Systematic review
For most phytonutrients, the effects of supplementation on HPA-axis activity in humans is unclear.
Based on systematic reviews showing anti-fatigue effects. Most studies used standardized extracts (3% rosavins/1% salidroside). Effects observed for both mental and physical fatigue.
AI-estimated from published studies. Interpret as directional guidance.
Both Lavender and Rhodiola Rosea are closely matched — the best choice depends on your specific health goals.
For build stress resilience, Rhodiola Rosea has a higher relevance score (92 vs 68).
No known interactions between Lavender and Rhodiola Rosea have been documented in our database. However, always consult a healthcare provider before combining supplements.