PHA Flea & Tick Stop - Against ticks and fleas The spray not only helps protect dogs and cats from parasites such as ticks, fleas or mites, but also cares for the animals skin and coat thanks to the use of macadamia and lavender oil. The natural and purely organic oils change the smell of pets and can thus keep annoying pests away preventively. Application: Thoroughly spray the animals skin and fur before the walk, let it dry, and then brush it with a finer brush.