Adams Flea and Tick Spray kills adult fleas, flea eggs, flea larvae, and ticks. Adams Flea and Tick Spray kills adult fleas, flea eggs, flea larvae, and ticks. It breaks the flea life cycle for up to two months. Use the flea spray to apply an even coat to your pet's hair and start killing flea and ticks. Kills adult fleas, flea eggs, flea larvae, and ticks Breaks the flea life cycle for up to two months Has three active ingredients: Etofenprox, (S)-Methoprene, and Piperonyl Butoxide For cats and dogs