DEET is the active ingredient in many popular bug repellants; it works not by killing mosquitos but but deterring them and keeping them away. Per the American Academy of Pediatrics, bug sprays with 30 percent DEET are considered safe for children; bug sprays of any variety are not safe for babies 2 months old or younger. A spray with 10 percent DEET provides about two hours’ of protection. And a product with 30 percent DEET gives you about five hours of protection. Choose the lowest concentration possible. And per the CDC, concentrations of 50 percent or higher provide no added protection. These are some of the top bug spray and lotion options for you and your kid based on Consumer Reports data and ratings; all the products on this list have a rating of 80 or higher. The organization ranks products based on their effectiveness against aggressive Aedes mosquitos, which can spread Zika, and Culex mosquitoes that can spread West Nile, coupled with whether they damage clothes and other materials when sprayed (or not). Every product on Fatherly is independently selected by our editors, writers, and experts. If you click a link on our site and buy something, we may earn an affiliate commission.