The present disclosure relates to a composition that includes lemongrass, castor oil, cedarwood oil, geraniol, sodium laurel sulfate, and corn oil for repelling and killing mosquitos. In one aspect of the inventive compositions comprise Guatemalan lemongrass, Juniperus virginiana and cedarwood oil. Some compositions further comprise mint oil, e.g., and Montana mint oil. Compositions according to the inventive subject matter kill insects at multiple stages in their life cycle including adult insects, larvae, and disrupt the egg cycle. In another aspect, the inventive compositions repel insects and retain repellency and insecticidal potency over a longer period of time than other natural insect repellents.