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Evidence-Based Supplement Research
Evidence-Based Supplement Research
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Lavender and Reduced Fatigue

Research synthesisModerate evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 randomized controlled trials, lavender (administered via inhalation) showed moderate beneficial effects on reducing fatigue in clinical populations. All 3 studies reported statistically significant improvements in fatigue scores. The median study duration was 7 days, with dosing typically involving nightly inhalation sessions of varying lengths (e.g., 15 minutes daily, 20 minutes before bed, or 2 minutes nightly).

  • Studied populations: adults with hypertension, patients with hematological malignancies undergoing chemotherapy, and patients with implantable cardioverter defibrillators

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). All studies used lavender essential oil via inhalation; results may not generalize to oral forms or other delivery methods.

Generated Jun 13, 2026
Time to effect
Median: 7 days · IQR 6 days–2.5 weeks · Range 5 days–4 weeks — Reported in 3 of 3 studies
3 of 3 papers
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