what essential oil repels mosquitoes
The essential oil with the strongest evidence for repelling mosquitoes is citronella , but several others also work well, especially lemon eucalyptus, clove, peppermint, and patchouli.
Quick Scoop
- Top proven options: citronella, lemon eucalyptus, clove, peppermint, patchouli.
- They work best as part of a properly formulated spray or lotion, not dabbed on undiluted.
- Protection time is usually shorter than DEET , often 1–2 hours unless the product is specially formulated.
- Always dilute essential oils in a carrier oil (like coconut or jojoba) and patch test your skin.
Best Essential Oils That Repel Mosquitoes
1. Citronella oil
- Derived from lemongrass plants and one of the most widely used “natural” mosquito repellents.
- Contains citronellal and geraniol, compounds that mask the human scents that attract mosquitoes.
- In properly formulated products, citronella can be comparable to DEET for short periods.
2. Lemon eucalyptus oil
- Recommended by the U.S. CDC as an active ingredient for insect repellents (specifically oil of lemon eucalyptus, not generic eucalyptus).
- Rich in citronellal plus other repellent compounds like eucalyptol and limonene.
- Effective against mosquitoes and some other biting insects like gnats and certain ticks.
3. Clove oil
- In a lab study of 38 essential oils, clove oil provided some of the longest 100% repellency , up to about four hours when undiluted.
- Very strong and can easily irritate skin, so it must be well diluted in a carrier.
4. Peppermint oil
- Provides a cooling effect on skin and has documented mosquito repellent activity.
- A study found undiluted peppermint oil gave complete protection for around 150 minutes on skin.
- Also sometimes used to soothe bites thanks to menthol’s cooling sensation.
5. Patchouli oil
- Identified in research as one of the more effective repellent oils when tested undiluted against Aedes mosquitoes.
- Often blended with citronella or other oils for a more pleasant scent and broader effect.
6. Other helpful oils (supporting role)
These may not be as strong alone as citronella or lemon eucalyptus, but can contribute in blends:
- Lavender – mild repellent, better known for soothing bites.
- Basil – can help repel mosquitoes when used on skin or as a plant around outdoor areas.
- Cedarwood – repels several insects including mosquitoes.
- Tea tree – more for bite care (antimicrobial, anti-inflammatory) than strong repellency.
Simple DIY Mosquito-Repellent Blend (Home Use)
For light backyard evenings, not for high-risk disease areas.
- 10–15 drops citronella essential oil
- 10 drops lemon eucalyptus essential oil
- 5 drops peppermint essential oil
- 2–3 drops clove or patchouli essential oil
- 2 tablespoons carrier oil (fractionated coconut, jojoba, or sweet almond)
How to use (safely):
- Mix oils in a dark glass bottle, shake gently.
- Patch test on a small skin area and wait 24 hours to check for irritation.
- Apply a thin layer to exposed skin, avoiding eyes, mouth, and broken skin.
- Reapply every 1–2 hours, since essential oils evaporate quickly.
Do not use this undiluted, on very young children, or in place of medically recommended repellents in areas with malaria, dengue, or other serious mosquito-borne diseases.
How They Compare
| Essential oil | Repellent strength | Approx. protection window | Key notes |
|---|---|---|---|
| Citronella | High (with proper formulation) | [9][7][3]Up to ~2 hours, sometimes similar to DEET short-term | [7][9][3]Most common natural repellent, masks human scent. | [3][7]
| Lemon eucalyptus | High, CDC-recognized active ingredient | [7]Often comparable to low–mid DEET products when formulated as “oil of lemon eucalyptus”. | [7]Works on mosquitoes and some other biting insects. | [3][7]
| Clove | Very strong in lab tests undiluted | [1][9]Up to around 4 hours 100% repellency undiluted in one study. | [1][9]Can irritate skin; must be diluted. | [1]
| Peppermint | Moderate–high | [3][7]Roughly 2–2.5 hours undiluted in one study. | [3]Cools skin, can soothe existing bites. | [5][3]
| Patchouli | High among tested oils undiluted | [9]Similar short-term window (~2 hours). | [9]Often used in blends to boost effect. | [9][3]
Safety, Limits, and When to Use Chemical Repellents
- Essential oils are not regulated like medicines and vary widely in quality and concentration.
- They usually provide shorter protection than DEET or picaridin and may need frequent reapplication.
- For travel to areas with serious mosquito-borne diseases, health agencies still recommend EPA-registered repellents (DEET, picaridin, etc.).
If you just want a more natural option for the backyard or a quick walk, citronella and lemon eucalyptus–based products are among the best-supported choices.
Information gathered from public forums or data available on the internet and portrayed here.
