Safety & risk
Essential oils are chemically active substances. Risk depends on composition, concentration, frequency, route of use, and individual variability. No essential oil is universally safe in all contexts.
Dilution guidelines (healthy adults)
| Application area | Typical dilution | Notes |
|---|---|---|
| Face | 0.5–1% | Lower is often sufficient. |
| Body | 1–2% | Conservative daily-use range. |
| Short-term localized use | Up to 3% (with caution) | Higher exposure increases risk; avoid prolonged use. |
Sensitization and irritation
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Irritation
A direct reaction that may occur quickly and typically resolves after exposure stops.
-
Sensitization
A delayed immune response that can develop over repeated exposures and may become long-lasting. Oxidized oils and higher concentrations increase risk.
Inhalation guidance
- Avoid continuous diffusion; use short intervals.
- Avoid diffusion in enclosed shared spaces.
- Use caution around infants, pets, and individuals with respiratory conditions.
Special populations
Extra caution is warranted for:
- Pregnancy and breastfeeding
- Infants and children
- Asthma or chronic respiratory conditions
- Epilepsy or seizure disorders
- Skin conditions or compromised skin barrier
- Medication use
When uncertainty exists, reducing exposure—or choosing not to use an oil—is an appropriate safety decision.
Disclaimer: Educational use only. Not medical advice. See References & Disclaimer.