Lavender

Also known as: Lavandula angustifolia, Silexan, lavandula

Confidence

research strength

ASolid confidence735 studies referenced

Latest evidence update: 2026-06-16

Strongest in Recency (100). Held back by Replication (47).

Study quality (37%)

Study design (21%)

Risk of bias (16%)

Mostly meta-analyses and well-designed RCTs.

Replication (26%)

Cross-study replication (21%)

Precision (5%)

Some independent replication, statistical precision uneven.

Sample size (16%)

Tens of thousands of participants pooled across studies.

Consistency (11%)

Studies agree on direction of effect.

Recency (10%)

100

Most studies are recent (last 2-3 years).

Effect by outcome

how big the change is

No quantified outcomes yet. Once we have studies with measurable endpoints, you will see per-outcome magnitude here.

Directional evidence

Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.

Common dosage

Oral lavender oil (Silexan) 80 mg daily for anxiety. Aromatherapy uses inhaled essential oil. Anxiety effects build over 2 to 6 weeks.

Description

Lavender is used two ways: as an oral standardized lavender oil capsule (Silexan) with strong evidence for generalized anxiety, and as inhaled aromatherapy for anxiety and sleep. Oral Silexan performs comparably to standard anxiolytics with placebo-like tolerability.

Safety & interactions

Oral Silexan can cause burping with a lavender aftertaste. Essential oil is for inhalation or diluted topical use, not for swallowing raw oil. May add to sedatives.

Check interactions with other supplements→

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Order Lavender

Recommended: Oral lavender oil (Silexan) 80 mg daily for anxiety. Aromatherapy uses inhaled essential oil. Anxiety effects build over 2 to 6 weeks.

Questions about Lavender

Who should avoid Lavender based on the safety notes?

What dose did studies use for Lavender, and when was it taken?

What kinds of studies back Lavender?

Referenced studies (5)

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