A professional household flea control product approved for amateur use long lasting killing action prevents flea reproduction, flushes fleas from hiding spaces. This is our most advanced household flea killing spray that combines to insecticides and an insect growth regulator. The insecticide flushes out fleas from their hiding spaces and kills them the insect growth regulator helped prevent the reproduction of any future fleas. It’s a long lasting formulation and low order during and after use.