The Institute for Optimum Nutrition
Botanical name: Lavandula officinalis
© Steven Foster
Eastern European countries, particularly Bulgaria, as well as France, Britain, Australia, and Russia grow large quantities of lavender. The fragrant flowers of lavender are used in the preparation of herbal medicines.
Lavender has been used in connection with the following conditions (refer to the individual health concern for complete information):
| Science Ratings | Health Concerns |
|---|---|
 |
Pregnancy (in bath, for perineal pain after childbirth) |
 |
|
 Reliable
and relatively consistent scientific data showing a substantial health benefit. Contradictory, insufficient, or preliminary studies
suggesting a health benefit or minimal health benefit. For an herb, supported by traditional use but minimal
or no scientific evidence. For a supplement, little scientific support and/or minimal health
benefit. |
|
Traditionally, herbalists used lavender for a variety of conditions of the nervous system, including depression and fatigue.1 It has also been used for headache and rheumatism. Due to its delightful odor, lavender has found wide application in perfumes and cosmetics throughout history.
The volatile oil (also called essential oil) of lavender contains many constituents, including perillyl alcohol and linalool. The oil is thought to be calming2 and thus can be helpful in some cases of insomnia. One study of elderly people with sleeping troubles found that inhaling lavender oil was as effective as some commonly prescribed sleep medications.3 Similar results were seen in another trial that included young and middle-aged people with insomnia.4 A large clinical trial found that lavender oil added to a bath was no more effective than a placebo for relieving perineal discomfort immediately after childbirth.5 However, perineal pain was reduced three to five days afterward. Lavender is recommended by the German Commission E monograph for indigestion and nervous intestinal discomfort.6
The German Commission E monograph suggests 1–2 teaspoons (5–10 grams) of the herb be taken as a tea.7 The tea can be made by steeping 2 teaspoons (10 grams) of leaves in 1 cup (250 ml) of boiling water for fifteen minutes. Three cups (750 ml) can be consumed each day. For internal applications, 1/2–3/4 teaspoon (2–4 ml) of tincture can be taken two or three times per day. Several drops of the oil can be added to a bath or diluted in vegetable oil for topical applications. The concentrated oil is not for internal use, except under medical supervision.
Internal use of the volatile oil can cause severe nausea. Very small amounts should be used only under the supervision of a healthcare professional. Excessive intake (several times more than listed above) may cause drowsiness.8 External use in reasonable amounts is safe during pregnancy and breast-feeding.
In case reports, three young boys developed breast enlargement (gynecomastia) after repeated topical application of products that contained lavender oil and tea tree oil. The problem resolved after they stopped using the oils. While a cause–effect relationship was not conclusively proven, it was suggested by the fact that these oils have been found to have estrogen-like effects in test tube studies.9
At the time of writing, there were no well-known drug interactions with lavender.
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