STEM Mosquito and Tick Repellent provides protection from mosquitoes for up to 8 hours. Use this outdoor mosquito repellent for your family's backyard cookouts, game days, summer fun, and lazy beach trips. It's made with an ingredient called picaridin and is a gentle, fragrance-free and non-irritant for your skin. Protect your entire family with a few simple spritzes of STEM bug spray and get back out there. Maximize your mosquito control with protection from mosquitoes that might carry West Nile, Zika, Dengue, and Chikungunya and from ticks that might carry Lyme disease. Non-greasy, non-oily and won't damage your clothing.