Pregnancy and Essential Oils: What’s Safe, What’s Not, and How to Use Them Wisely
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Essential oils can be a powerful source of comfort and support during pregnancy—helping with nausea, sleep, anxiety, and muscle tension. But pregnancy is a time of heightened sensitivity, and the use of essential oils should always be approached with caution and respect. While many oils are safe when diluted and used correctly, others may pose risks to the developing baby or overstimulate the body.
If you are pregnant, it is advisable to consult with a qualified clinical aromatherapist or your midwife before using pure essential oils, especially in the first trimester or if you have a complex medical history.
Why Essential Oil Safety Matters During Pregnancy
During pregnancy, the skin becomes more permeable, the body’s metabolism changes, and the placenta allows some aromatic compounds to reach the developing baby. Additionally, the sense of smell is often heightened, which means oils that are normally tolerable may become overwhelming or irritating. Using essential oils incorrectly can lead to nausea, skin sensitisation, or in rare cases, uterine stimulation—so knowledge and moderation are key.
General Safety Guidelines
Avoid essential oils entirely in the first trimester, unless prescribed by a trained professional.
Always dilute essential oils in a carrier oil (such as jojoba, camellia, or sweet almond). A safe dilution for pregnancy is 0.5–1% (3–6 drops of essential oil in 30ml of carrier oil).
Do not ingest essential oils or apply them directly to the skin undiluted.
Choose pure, unadulterated oils—avoid synthetic blends or perfumed oils.
Essential Oils Generally Considered Safe (from second trimester, with caution)
Lavender (Lavandula angustifolia) – Calming for nerves and skin
Mandarin (Citrus reticulata) – Gentle, uplifting, and helps with fluid retention
Roman Chamomile (Chamaemelum nobile) – Anti-inflammatory and soothing for anxiety
Frankincense (Boswellia carterii) – Grounding and supports breath and mood regulation
Ginger (Zingiber officinale) – Helpful for nausea in very low doses
Cardamom (Elettaria cardamomum) – Mild digestive and respiratory support
Even safe oils must be used with restraint—always test for sensitivity and avoid prolonged or daily use without professional advice.
Essential Oils to Avoid During Pregnancy
Clary Sage, Jasmine, and Rose – Can stimulate uterine contractions; best reserved for labour
Cinnamon, Oregano, Thyme, Wintergreen, Camphor – Strongly irritating and potentially toxic
Peppermint – May reduce milk supply and be overly stimulating
Basil, Fennel, and Sage – Hormone-active oils, best avoided unless advised otherwise
All essential oils in the first trimester unless cleared by a qualified professional
How to Use Essential Oils Safely During Pregnancy
Diffusion: 2–3 drops in a diffuser for 15–30 minutes in a well-ventilated room
Baths: 2–3 drops mixed in a tablespoon of carrier oil or full-fat milk, stirred into warm (not hot) bathwater
Massage: 1–2 drops in 10ml of carrier oil (0.5–1% dilution), massaged into the back, hips, or legs
Compresses: Use for localised tension or soreness, such as tired feet or lower back discomfort
Postpartum Considerations
After birth, some previously contraindicated oils may be reintroduced—Clary Sage for uterine recovery, or Rose for emotional balance. However, if breastfeeding, it's still essential to avoid applying essential oils to areas that come into direct contact with your baby. Stick with gentle, skin-friendly oils and use low dilutions.
Conclusion
Used wisely, essential oils can support emotional and physical wellbeing throughout pregnancy. But every body and every pregnancy is different. If you’re pregnant, speak to a qualified aromatherapist or midwife before using essential oils, particularly in concentrated form. With expert guidance, essential oils can offer calm, clarity, and connection during one of life’s most transformative times.