Enjoy effective protection from mosquitoes with plant-based Natrapel Lemon Eucalyptus 6-oz. Mosquito-Repellent Spray. This DEET-free mosquito spray repels mosquitoes for 6 hours using oil of lemon eucalyptus, an active ingredient made from lemon eucalyptus tree leaves that's the only naturally derived ingredient recommended by the CDC. An effective DEET alternative, Natrapel is a great mosquito repellent for the whole family and is safe to use on gear and clothing. The environmentally friendly Eco-Spray bottle sprays at any angle for easy, consistent coverage without using any ozone-depleting propellants.Manufacturer model #: 0006-6865. DEET-free formula Works up to 6 hours Only CDC-recommended naturally derived active ingredient Safe on gear and clothes Environmentally friendly bottle: no harmful propellants