Worry less about pesky mosquitoes and ticks and spend more time enjoying the outdoors with Repel® brand. Repel® 100 Insect Repellent provides you with up to 10 hours of protection against mosquitoes. Formulated for severe insect conditions, Repel® 100 Insect Repellent contains 98.11% DEET and repels mosquitoes that may transmit the Zika, West Nile, Dengue and Chikungunya viruses, as well as ticks, gnats, biting flies, chiggers and fleas. Recommended by the Centers for Disease Control and Prevention for effective, long-lasting protection against mosquitoes, DEET is also an effective repellent for ticks. DEET-based insect repellents are available in a wide variety of Repel formulas, including aerosols, sprays and wipes.