The Seresto Tick and Flea collar kills and repels fleas and ticks for 8 continuous months in the form of a non-greasy, odourless collar. Quickly kills fleas within 24 hours of initial application. Re-infesting fleas are killed within 2 hours.
The Seresto® collar works with a unique polymer matrix of two active ingredients, which spread from the site of direct contact over the skin surface of your dog: Imidacloprid has been used in products for years to control flea infestations. Flumethrin effectively kills and repels ticks.