Indorex Household Flea Spray represents a modern method to combat flea infestations. The Household Flea Spray contains a combination of 3 ingredients. Permethrin, an iseciticide which will qucikly and effectively kill adult fleas in your pets environment. Piperonyl Butoxde reinforces the activity of the Permethrin. Priproxyfen is a long lasting Insect Growth Regulator which prevents Flea Eggs and Larvae from developing into adults. The 3 ingredients break the Flea Life cycle and provide continuous protection for up to 12 months.