DEET versus Permethrin as a Tick Repellent
DEET has a detectable odor. Permethrin smells only until it dries. DEET does not kill or disable ticks and is a poor repellent. Permethrin works instantly and is extremely effective. It is the tick repellent of choice by the military. DEET can melt synthetic clothes like nylon. Permethrin causes no damage to any known cloth or synthetic fiber.