A Filipino scientist has developed a plant-based mosquito repellent and insecticide that could offer families a safer and more sustainable alternative to chemical-based products.
Dr. Gracia Fe Yu, a retired professor from University of the Philippines Manila’s College of Medicine, introduced “Mox Oil” (Mosquito Away Oil) during TeknoLusugan 2026 in Pasay City.
The innovation was designed to address the growing demand for gentler but effective protection against mosquitoes, especially for children and households seeking safer options against mosquito-borne diseases.
Studies Show Promising Results
Laboratory and animal model testing showed that mosquitoes consistently avoided areas treated with the plant extract-based formula. Researchers also observed insecticidal effects at higher concentrations.
Yu said lotions containing 15 percent and 20 percent plant extract began killing mosquitoes within 10 minutes. After 20 minutes, around 80 percent of the mosquitoes had died, while complete mosquito mortality was recorded after 40 minutes.
Skin irritation tests also showed negative results, suggesting the product is safe for topical use.
To develop the formulation, Yu’s team screened several plants known for their natural insect-repelling properties. The study focused on balancing strong mosquito protection with a formula gentle enough for regular use, particularly for children’s sensitive skin. The specific plants used were not disclosed.
Initially developed as an oil, Mox Oil has since expanded into lotions, sprays, and other forms. Researchers also found the product effective against household pests such as ants.
Supporting Communities and Public Health
Beyond its health benefits, the project also supports sustainability and local livelihoods. Indigenous and local communities, including Aeta groups, help cultivate medicinal plants and source raw materials for the product.
The development comes as mosquito-borne diseases remain a major public health concern in the Philippines. Aside from dengue, illnesses such as malaria, chikungunya, Japanese encephalitis, and lymphatic filariasis continue to threaten vulnerable communities.
UP Manila and Yu are now looking for partners to help bring Mox Oil to the mainstream market and strengthen the country’s fight against mosquito-borne diseases.
