The most advanced, ready-to-use fly, mosquito and tick repellent available. Insects are killed and repelled for up to 17 days. Kills and repels mosquitos that can transmit viral infections like the West Nile Virus. Water based with 2 sunscreens to extend repellents effectiveness. Sweat resistant and weather proof. 3 active ingredients: Natural Pyrethrins (from chrysanthemums), Permethrin and Piperonyl Butoxide. Use on horses, ponies, dogs, stalls and bedding.