HERBS
Is Lavender Safe? What the Evidence and TCM Tradition Say
Before adding Lavender to your routine, read this page. It collects the safety findings, the traditional contraindications and the boring-but-important stuff about doses.
What the research says about safety
The caution list is short but real: however, some people may experience adverse effects such as diarrhea, headache, nausea, or burping. Aromatherapy with lavender oil is considered possibly safe, but it may cause headache or coughing. Topical products containing lavender may cause allergic skin reactions in some people. Many herbal products intended for oral use are marketed as dietary supplements.
The traditional warnings
Chinese medicine has its own caution list, based on the herb's nature rather than trials: light use only in pregnancy. A practitioner checks your pattern before prescribing precisely for this reason.
Common-sense rules
Keep to food-level amounts unless a practitioner says otherwise, take breaks rather than running any herb continuously for months, and stop at the first sign that something disagrees with you. If you are pregnant, breastfeeding, on prescription medication or managing a chronic condition, talk to a professional before starting.
Consistency beats dose. A modest amount taken regularly usually does more than a heroic amount taken twice.
Sources and further reading
We cite classical materia medica and modern reference works. This article is health education, not medical advice.
- Shennong Bencao Jing (The Divine Farmer's Materia Medica), Han dynasty.
- Bencao Gangmu (Compendium of Materia Medica), Li Shizhen, 1578.
- Chinese Pharmacopoeia, current edition — identity, quality and safety monographs.
- NCCIH and WHO reference material on traditional medicine safety.
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