For dogs and puppies. Contains 0.50% Etofenprox and 0.27% (S)-Methoprene. Provides quick relief and kills visible fleas and ticks on your pet immediately. Fast-acting formula kills and repels fleas, ticks and mosquitoes. Kills flea eggs and controls flea infestation for up to 2 months. Kills more than 90% of fleas and 80% of ticks in 1 day.