3M Ultrathon Insect Repellent 12hr Lotion 2oz Contains 34.34% DEET for superb protection against insect bites Proven to repel mosquitoes, ticks, biting flies, chiggers, gnats, fleas and deer flies Advanced 3M Controlled Release Technology provides a continuous shield of protection that lasts up to 12 hours when used as directed Unique time-release technology provides long-lasting protection