Mosquitoes are attracted to lactic acid, a chemical found in sweat, so as you and your family become active, you can become more appealing to these hungry pests. OFF! Active repellent contains 15% DEET, providing up to 5 hours of protection for your active lifestyle. Protects against mosquitoes, black flies, stable flies, ticks, chiggers, biting midges and deer flies. Our long-lasting formula protection that goes on dry and doesn’t stain. Ideal for running, hiking, playing, and other outdoor activities. Keep out of reach of children and pets. See the label for other precautions and usage directions.