Lavender: Anxiety, Sleep, and the Difference Between Essential Oil and Infusion

A study on a standardized lavender oil capsule therefore doesn't validate a homemade infusion, an essential oil sold for diffusion, or a few drops poured into a glass of water.

According to the NCCIH, the U.S. agency dedicated to complementary medicine, certain oral products based on lavender oil might be useful for anxiety, including when it comes with depressive symptoms. The agency notes, however, the small size of the studies, the lack of independent funding, and the limited diversity of participants.

These results don't allow us to conclude that an essential oil, inhaled or applied to the skin, treats an anxiety disorder.

Persistent or intense anxiety, combined with depression, panic attacks, or suicidal thoughts, requires medical advice. Lavender should not delay proper care.

The scent of lavender can have a place in an evening ritual. Aromatherapy is not, however, equivalent to a treatment for insomnia: the NCCIH considers its benefit on sleep quality uncertain. Diffusion can also cause coughing or headaches in some people.

The European Medicines Agency (EMA) recognizes a traditional use of certain lavender flower preparations for mild stress symptoms and to aid sleep. This recognition rests on the long history of use; it guarantees neither the effectiveness of a given product nor that it suits everyone.

If your sleep has been disrupted for several weeks, look for the causes and seek advice. A screen-free evening routine can complement this approach, without replacing an evaluation.

An infusion provides a variable amount of water-soluble constituents, diluted in a large volume. An essential oil, by contrast, concentrates the plant's volatile molecules. Being natural or pleasant-smelling doesn't make it suitable for swallowing.

The oral products studied are standardized capsules, taken short-term. At the doses tested, they appear relatively well tolerated, but can cause diarrhea, headaches, nausea, or belching. Lavender used as a culinary flavoring represents an exposure nowhere near comparable to a concentrated essential oil.

Little is known about the safety of lavender during pregnancy and breastfeeding. Seek professional advice before regular use of an infusion, an extract, or any essential oil.

In children, avoid ingestion, undiluted applications, and diffusion in a small room. The NCCIH also notes rare cases of breast tissue swelling in children using lavender-containing skin products, though a cause-and-effect link hasn't been established.

Animals don't necessarily metabolize essential oils the way we do. Don't diffuse or apply essential oil near a pet without veterinary advice, ventilate the room, and keep the bottle out of reach.

Applied to the skin, lavender can cause an allergic reaction or contact dermatitis. Stop use in the case of rash, swelling, breathing difficulty, or feeling unwell, and seek help promptly if the reaction is significant. Pure essential oil should not be applied to the skin; use a diluted product designed for that purpose.

The NCCIH mentions theoretical reasons for concern about interactions with sedative medications and herbs. Seek advice before regular use if you take a sleep aid, an anti-anxiety medication, a sedating antihistamine, an opioid, another treatment that reduces alertness, or several medications. In the case of drowsiness, avoid alcohol and don't drive.

• Identify the species, the part used, and the exact form.
• For a tea, check that the flowers are intended for food or medicinal use.
• For an essential oil, look for the botanical name, the batch number, and the intended use; don't confuse diffusion, application, and ingestion.
• Be wary of claims of treating anxiety or guaranteeing sleep.
• In the case of treatment, pregnancy, breastfeeding, a child, a pet, an allergy, or a chronic illness, seek advice before use.

In practice, infusions and culinary lavender are everyday uses; aromatherapy can accompany a relaxation ritual without solid evidence against insomnia. The most precise data concern certain standardized oral capsules and don't validate swallowing just any essential oil. For other evening plants, see also lemon balm and passionflower.