The quickest way to kill a flea and tick is to expose them directly to a wet insecticide product such as a pet shampoo or spray that is applied directly to the animal's entire coat, penetrating to the skin, where fleas and ticks are usually found.
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Active Ingredients: Pyrethrins 0.20%/(S)-Methoprene 0.27%/Piperonyl Butoxide Technical 0.37%/N-Octyl Bicycloheptene Dicarboximide 0.62%