Instruct: Classify Amazon reviews into positive or negative sentiment
Query: FRontline

I chose this rating because I paid a fair price for this product and it seems as if it does not kill fleas! I'm not sure if they are immune to FRONTLINE or what it is. I am greatful that I had the opportunity to buy this product for my inside dogs who do play outside. I just want to say that even after a really good bath I applied this Frontline and it did not work on either of my pets and I applied it as the instructions stated. Someone else may have different results, I have been using Frontline for years, maybe the fleas in my neighborhood are immune to it, because it used to knock them dead!