this review title is: do not expect more just because it costs more and the content is: this does not work any better than the other products available from frontline or advantage it is not fast acting and must be reapplied every weeks it does not last four weeks this just cuts down on fleas it does not kill many of them.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.