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Review title: Doesn't work anymore...
Product review: I have used this for my cats for as long as I can remember. My cats are 13 years old and 6 years old...this worked fine for them all those years, but for some reason the one I purchased from amazon does not work. I don't know if the product is bad or maybe a knockoff, but this does nothing! I put it on them, and the next day they are still itchy with fleas. I think I am going to try Revolution once I finish my 6 pack or start buying Frontline Plus from my vet!
