Lavender is a fragrant flowering shrub from the Mediterranean region. Its essential oil contains primarily linalool and linalyl acetate, compounds that interact with GABA receptors in the brain producing calming effects.

Traditional use

Used in Roman baths for relaxation and cleanliness. Medieval European healers used lavender for headaches, insomnia, and nervous conditions. Widely used in Ayurveda and traditional Chinese medicine.

What modern research suggests (Well-supported)

Silexan (oral lavender oil preparation) has been tested in multiple RCTs against placebo and lorazepam for anxiety, showing significant anxiety reduction with minimal side effects and no dependency risk. Aromatherapy with lavender oil consistently reduces anxiety scores in clinical settings. Studies show improved sleep quality with lavender aromatherapy.

How people use it

For anxiety/sleep: Silexan capsules (80mg standardised oral lavender oil) daily—this is the evidence-based form. For aromatherapy: diffuse 3–5 drops of essential oil or add to a bath. For skin: dilute 2–3% in carrier oil. As tea: steep 1 teaspoon of dried flowers in hot water for 10 minutes.

Safety + interactions

Oral standardised capsules are generally safe. Do not ingest undiluted essential oil. Topical use is very safe when diluted. Some reports link repeated topical lavender to gynaecomastia in prepubescent boys—exercise caution in children. May enhance effects of sedative medications.

May interact with: Sedatives, CNS depressants

Name clarity note

Lavandula angustifolia (true/English lavender) is the therapeutically studied species. Lavandin (Lavandula × intermedia), a hybrid, is much cheaper and used in many commercial products but has different composition and less evidence. Spike lavender (Lavandula latifolia) is different again. Check the species on supplement labels.

Quality notes

For aromatherapy, look for 100% pure Lavandula angustifolia with GC/MS testing results available. French lavender from altitude (e.g. Provence) typically has higher linalool content. Oral silexan capsules (Silexan, 80mg) are a standardised extract used in clinical trials.

FAQs

Can lavender really help with anxiety?

Yes, specifically the oral standardised preparation Silexan (Lasea) has been shown in multiple clinical trials to significantly reduce anxiety in generalised anxiety disorder, with comparable efficacy to low-dose lorazepam and no dependency risk.

Is aromatherapy lavender as effective as lavender capsules?

Aromatherapy lavender has good evidence for acute anxiety reduction in clinical and hospital settings, but the clinical trial evidence for sustained anxiety treatment is based on oral Silexan capsules, not aromatherapy.

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Disclaimer: This content is educational and not medical advice. Always consult a qualified healthcare provider before using any herbs or supplements, especially if you are pregnant, nursing, taking medications, or have a medical condition.

Lavender

At a glance

What it is