Lavender Oil Improved Depressive Symptoms in Trial

A study found a specific oral lavender preparation reduced symptoms in adults with major depressive disorder.

Updated on Oct. 2, 2026 in Mental Health

Gouache-painted illustration of a single lavender sprig on a cream background, representing botanical-based mental health research.
A randomized controlled trial published in the journal of mental health found that the oral lavender preparation Silexan significantly reduced depressive symptoms in adults. AI Illustration. Upload story photo >

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A randomized controlled trial found that the oral lavender oil preparation Silexan significantly reduced depressive symptoms in 498 adults with mild-to-moderate major depressive disorder over an 8-week period. The treatment demonstrated effectiveness comparable to the common antidepressant sertraline.

Why it matters

Identifying alternative treatment options for major depressive disorder can broaden the range of therapies available to patients. Researchers investigated individual symptoms to better understand which facets of depression are most responsive to this intervention.

In a randomized controlled trial of 498 adults with mild-to-moderate depression, Silexan proved superior to a placebo in reducing scores on the Montgomery-Åsberg Depression Rating Scale. The 8-week study, conducted in Germany and Poland, found significant improvements across five key symptoms.

The players

Silexan

A standardized oral essential oil preparation derived from Lavandula angustifolia used in clinical research for depressive symptoms.

Sertraline

A commonly prescribed selective serotonin reuptake inhibitor (SSRI) used as an active comparator in this mental health study.

The details

The trial evaluated 80 mg/d of Silexan, a standardized oil derived from Lavandula angustifolia, against 50 mg/d of the selective serotonin reuptake inhibitor (SSRI) sertraline. Researchers conducted a preplanned exploratory analysis of individual scale items to determine which depressive symptoms, such as sadness, appetite, concentration, and lassitude, were driving the overall therapeutic benefit.

Timeline

  1. The clinical trial duration for participants was 8 weeks.

  2. The study findings were published in September 2026.

Health Landscape

This research follows standard psychiatric protocols by utilizing the Montgomery-Åsberg Depression Rating Scale to measure clinical outcomes. It contributes to the evolving landscape of evidence-based options for treating mild-to-moderate depressive disorders.

If you are managing mild-to-moderate depressive symptoms, it is worth discussing these findings with your doctor to determine if current evidence supports exploring new treatment avenues. Because individual health needs vary, never make changes to prescribed SSRI treatments without first consulting your clinician.

The takeaway

This trial highlights the potential for standardized essential oil preparations to address specific depressive symptoms when monitored professionally. Patients should continue to track symptom patterns and discuss all potential treatment adjustments directly with a licensed healthcare provider.

Further reading

For broader insights into modern approaches to managing emotional health, visit the Mental Health section.

Source note: This article includes information reported by Medscape.

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