Study summary
Repellency of Essential Oils and Plant-Derived Compounds Against Aedes aegypti Mosquitoes
Lopez AD, Whyms S, Luker HA, Galvan CJ, Holguin FO, Hansen IA
- Study type
- Lab
- Year
- 2025
- Published in
- Insects 16(1):51
- Evidence strength
- Well-supported evidence
Summary
Arm-in-cage dose-response study for geraniol at 1–10% on human skin, establishing a sigmoidal protection curve with EC50 around 5%.
Key findings
Complete protection plateaus at roughly 5% (~1 h); concentrations above 5% add no meaningful duration, quantifying geraniol's short-duration ceiling for plain formulations.
Limitations
Laboratory arm-in-cage; small volunteer count (n=4–5 per treatment); single mosquito species.