EPA registered insect repellent for both horse and rider is not oily, greasy, or sticky. For horse: Long-lasting, 12 hr effective protection from flies and mosquitoes. For rider: Long-lasting, 12 hr effective protection from mosquitoes and ticks including mosquitoes carrying West Nile virus. Won't damage saddle, bridle, plastic, or other synthetic materials. Active ingredient: Picaridin. Smells great. 15 oz.