Unlike other reviewers I can only say that the product works with our dog and unwelcome guests (such as fleas, etc.) outside leaves or they kill immediately. Our dog is not betrofffen of the so-called "chemical warfare", is more cheerful and drives his nonsense. Instead, we are reassured with Frontline our dog and with the appropriate product for the cat, and these have probably protected.
The purpose of applying is really simple, just you have to actually get the skin of the dog or cat and not the fur, which uses nothing. Four hands are like two helpful here!
