Plant based. DEET free. Repels mosquitoes that may carry Zika virus, West Nile virus & Dengue virus. Repels mosquitoes for up to 6 hours. Murphy's Naturals Lemon Eucalyptus Oil insect repellent goes on easy with a cool, refreshing scent. This unique, plant-based active ingredient repels mosquitoes, including those that may carry Zika Virus, West Nile Virus, Dengue Virus and Chikungunya Virus, for up to six hours. Powered by citriodiol. Nature's repellent. www.murphysnaturals.net. Questions or Comments? please call 1-888-314-5109.