Contains Nylar® insect growth regulator, and the botanically-derived insecticide Linalool. Kills all four stages of the flea - adults, eggs, larvae and pupae. Breaks the flea life cycle and controls reinfestation for up to 210 days. Kills ticks, roaches, ants, spiders, lice, crickets, centipedes, waterbugs, silverfish and sowbugs. Use on carpets, drapes, rugs, upholstered furniture and pet bedding.