Fragrantly plant-based, Murphy's mosquito and tick repellant offers an effective and natural alternative to DEET, the active ingredient in most bug sprays. Powered by lemon eucalyptus oil from an Australian plant with many medicinal applications, it comes in a refreshing and easy-to-apply mist formulation. Murphy's claims to repel deer ticks for up to 4 hours, mosquitoes for up to 6 hours and lone star and brown dog ticks for more than 8 hours.