Product that works quite well, advised by my vet to fight against ticks and fleas! My little Chloe bulldog can roll and make the 400 blows in the garden under good protection, careful anyway that your dog can still bring chip and tick at home! a visual check + a combing save you the chore of veto and you shalt make a nice economy ...... Prevention is better than cure! FYI there are anti-tick ..... Demavic hooks - Hook Anti Ticks Tick Twister Otom to have in the doggie bag!