GUIDE
Published on ·Updated on
Some essential oils are considered safe after the first trimester when properly diluted. Avoid all essential oils in the first trimester as a precaution.
Lavender, chamomile, and citrus oils (lemon, orange, grapefruit) are generally considered safe for aromatherapy and topical use (diluted) in the second and third trimesters. Several oils should be avoided throughout pregnancy because they may stimulate contractions or have other effects. Always dilute essential oils and never ingest them.
Be prepared from day one
The scientific evidence on essential oils during pregnancy is limited. Most safety recommendations are based on traditional use, the chemical composition of the oils, and a precautionary approach rather than on large clinical studies. This means the "safe" and "avoid" lists reflect expert consensus and reasonable caution, not definitive proof of harm or safety.
What we do know: essential oils are highly concentrated plant extracts. A single drop of essential oil can contain compounds equivalent to many cups of herbal tea. This concentration is why dilution and moderation are important — especially during pregnancy, when your body is more sensitive to certain substances.
The first trimester is the most cautious period because it is when major organ development occurs. Most aromatherapists and midwives recommend avoiding essential oils entirely during the first 13 weeks, then introducing safe oils in the second trimester.
Always dilute properly and use in moderation. 'Safe' means safe at appropriate doses with proper use, not unlimited use.
Some of these oils (clary sage, jasmine) may be used intentionally during active labor under the guidance of a midwife or provider. They should not be used before labor.
Proper dilution is non-negotiable. Undiluted essential oils can cause skin irritation, sensitization, and chemical burns.
Lemon, grapefruit, and peppermint (in small amounts) are commonly used for pregnancy nausea. Try putting 1-2 drops on a tissue and inhaling when nausea hits, or add 3-4 drops to a diffuser. This is a gentle approach that many people find helpful alongside other nausea remedies.
Essential oils can be a pleasant addition to your pregnancy when used wisely. Stick to the safe list, always dilute for topical use, avoid oils in the first trimester, and never ingest essential oils. If you have any concerns, ask your provider or a certified aromatherapist who has experience with pregnant clients.
For related safety topics, see our pregnancy skincare guide (which covers safe topical products), our herbal tea guide, and our pregnancy-safe medications guide. For overall prenatal care, check our prenatal visit schedule.
This guide is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any questions about your pregnancy.
