CoreTex Bug X 30 towelettes are effective for 7+ hours against mosquitoes, ticks, chiggers, fleas, gnats, red bugs, no-see-ums, sand fleas, biting flies, deer flies, stable flies, and black flies The approved EPA formula allows the DEET to be released in a more controlled and measured manner, permitting longer lasting performance once obtained only by high concentrations of DEET. Water and Sweat Resistant; Non-Staining