Essential oils have become a familiar part of many UK households, but when there are children around, the rules change considerably. This guide brings together generally accepted aromatherapy safety guidance — it is not medical advice and does not suggest essential oils treat, prevent, or manage any childhood illness. If in doubt, speak to your GP, pharmacist, or a qualified paediatric aromatherapist first.
Why Children Need Much Greater Dilution
Children's skin is thinner and more permeable, meaning more of whatever is applied can be absorbed — combined with much lower body mass, the same drop that's a tiny exposure for an adult can be proportionally large for a child. Their metabolic systems are also still developing.
General Dilution Guidance by Age
As general (not prescriptive) guidance often cited by bodies like the Tisserand Institute and IFA: under 3 months — many aromatherapists recommend avoiding topical use entirely; ask a healthcare professional first. 3 months–2 years — extremely low dilutions, often 0.25–0.5%, and only very gentle oils. 2–6 years — around 0.5–1%. 6–12 years — around 1–2%. Adults, for comparison — commonly around 2–3%. When in doubt, dilute more, not less.
Oils Generally Considered Unsuitable for Young Children
Peppermint, due to menthol, is widely advised against for babies and very young children over breathing-related concerns. Eucalyptus, due to 1,8-cineole, carries similar cautions, particularly near the face. Guidance varies by source, so research any specific oil thoroughly and check with a qualified aromatherapist or pharmacist before introducing it around a child.
Safe Practices Around Children
Diffuse in well-ventilated rooms only, never in a closed room where a baby sleeps unsupervised. Never apply near the face or nose of infants. Always patch-test heavily diluted blends. Never give oils internally to children. Store bottles well out of reach, ideally locked away. Keep blends clearly labelled.
When to Speak to a Doctor or Pharmacist Instead
Always consult a GP, pharmacist, or qualified aromatherapist before using oils on or around a child who is an infant, has asthma, eczema, epilepsy or another diagnosed condition, is currently unwell, or if you notice any skin reaction or breathing change. If you suspect a child has ingested an oil or had an adverse reaction, contact emergency services or the NHS immediately.
Final Thoughts
Used thoughtfully — with appropriate dilution and sensible precautions — essential oils can be a lovely part of family life. Take the extra time to research each oil, dilute conservatively, and lean on professional advice whenever you're unsure.