I’ve had my cat for around 8 years. I’m a fifteen year old and love her to death I’ve had her since i was little. She never ever got fleas but she happened too. We just went and got hartz flea spray at walmart and used it. It seemed to work very good. We were about to go on a camping trip but i was not leaving. My cat bubbies was acting weird and wouldn’t leave my bedroom for anything. She wouldn’t get up at all. We called the vet and they told us hartz is the worst possible thing to use. They told us to give her a bath in dawn soap and we saw results immediately. After a day we had are cat back. We were one of the lucky ones that she survived. i called hartz and complained and all they did was told me “they would pass my comment along.” Hartz is a greedy company that could care less if their products are killing pets. It great they are finally getting what they deserve. No wonder hartz kills fleas if it can manage to kill cats too.