I love this product and my dogs love being flea free! No more chewing and scratching and chasing fleas. We have two bassets one of which is real sensitive to fleas. Once we started him on this product he calmed down and is a real happy laid back fellow. Product does leave an oily patch on the fur for a bit and you need to remember not to pet your dog there for a day or two, and then its all gone :O)

Cleared up heavy flea infestation.