This was an absolute waste of money! As a flea and tick killer AND as a preventative. Thankfully I was able to return the last month's supply (there are three) and receive a full credit at PetSmart (where this was purchased). I knew that I should have just went and bought advantage (which i knew was a sure bet) but wanted to try this product first...thinking I was saving money. My dog has never been more misrable with constant fleas!

 Best thing to do is to just bathe your pet with DAWN, (an excellent flea bath by the way). I will never buy these products again!