Abstract The increasing death rate caused by dengue has been a very intimidating concern to the community. People, especially the young children, are strongly advised to use various mosquito repellent products, however, we cannot assure that these products are safe to use. Since most of them are made out of chemicals, we can say that they are expensive and may damage the skin or even cause death due to high poisonous chemical content. The proponents have decided to create a mosquito repellent out of neem seed kernels, atis leaves and lemongrass. These plants have active insect-repelling ingredients that are just as effective as DEET, a toxic chemical present to most of the mosquito repellents. There were two processes involved in making the repellent. These processes are extraction by decoction and filtration. Each of the ingredients was decocted individually in a casserole with water. Afterwards, filtration was done to separate the liquid from the extracted ingredient. The extracts were then mixed together. Tests were undertaken to determine the repellent’s effectiveness. Three setups were made and each had the same number of mosquitoes. The natural mosquito repellent was applied to Setup A, a commercial mosquito repellent to Setup B, and nothing to Setup C. Three weeks after performing the test, the observations were then made. In Setup A, approximately 80% of the mosquitoes’ population were eradicated. In B, about 85%, and in C, about 10%. The tests showed that the natural and commercial mosquito repellent were somewhat the same in the results and closely as effective.