Not sure if it works because I use it on my feral kitties that I can pet, but not well enough that I can check them for fleas. But the kitties I do use it on look pretty good, which I suspect may be related to the flea meds.

This Stronghold is an excellent product for our cats! quick delivery and excellent customer service.

Living in Florida, fleas and other parasites can be present year 'round. We have a cat with a flea allergy, and Stronghold keeps her flea free and comfortable, it's easy to apply, and most importantly for our family, it's affordable, as we have 6 rescue cats. Simpy stated, Stronghold works!

Have used this formula for many years have great healthy kitties.

Best product on the market to treat fleas,mites and ticks. Wouldn't use any other product on our cats.