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Review title: Hasn't worked in several years!
Product review: I have used this product for years, ever since it first came out on the market. It used to work wonderfully for my dogs, even with frequent bathing. Over time, it seems to have lost its effectiveness, and not just with my own animals. I am a professional groomer and a lot of grooming clients have complained that they are still finding numerous fleas on their animals and in their homes, despite months or years of continuous use. I gave Frontline its last chance a year ago, then switched to Comfortis and haven't looked back. I'm not sure if the fleas are building up a resistance to the chemical, or if there was a change in formula by Merial, but this product does not work as well as some of the newer medications on the market. Think twice before purchasing Frontline.
