Beaphar FLEAtec Household Flea Spray is a premium flea control product, combining an insecticide with an Insect Growth Regulator to fully protect your home against all stages of the flea life cycle.The fast-acting insecticide rapidly kills adult fleas, as well as other crawling pests such as cockroaches, ants, or silverfish. Meanwhile the Insect Growth Regulator 'S-methoprene', targets the developmental stages of the flea life cycle. Kills flea larvae and prevents flea eggs from hatching for up to six months.