So I can not confirm the reviews of others. I have two cats and they had strong flea infestations plus of course the complete apartment (ie upholstered furniture, rugs, blankets, etc.) were besieged. The biggest problem was that our son was 6 months old at the time and Frontline, flea collars and other chemicals were not suitable for the treatment. So I resorted to Spot on and after the first application was to soon find that it has been less fleas. Additionally, I have thoroughly twice daily and sucked all blankets, pillows etc. washed and disinfected. After 4 weeks I have again spot on applied and after 8 weeks we were flea free. I can not therefore, unlike many here recommend.
