How long does it take Seresto to kill fleas

Seresto is a flea collar that actively protects pets from fleas and ticks for 8 months when worn correctly. It works by continuously releasing imidacloprid (an insecticide) and flumethrin (a pyrethroid) at low concentrations through its waterproof collar. These two substances combine to provide your pet with up to 8 months of continuous protection against […]