This stuff is not expensive at all, can be purchased anywhere and it is very effective. all you do is wet dogs hair, I massage it in for ten minutes and I rinse out. You can actually see the dead fleas going down the drain and it has this very nice pine smell to it. it also effectively gets all the dirt of the dog. I love this stuff all you have to do is thoroughly wash blankets and floors when finished shampooing the dog and you will fully rid your home of those pesky ankle biters.