DEET is a chemical commonly used in insect repellents. Otherwise known as N,N-diethyl-3-methylbenzamide, DEET is considered the best defense against biting insects such as mosquitoes or ticks.
Depending on the type of repellent, the product may have anywhere from 10-30 percent DEET. Typically, 10 percent DEET lasts approximately two hours and 30 percent DEET lasts around five hours.
The least concentrated product should be used to protect your child, and the directions on the bottle followed closely. Adults should apply the product to the child, avoiding their eyes and mouth. As soon as your child returns indoors, the repellent should be washed off with soap and water. Children under 2 months old should never use insect repellents.
Reviewed by Dr. Sara Connolly, January 2020