I ordered the Frontline Plus for my little guy and he was good for about 1.5 months (3-month order); then, I saw 2 fleas to my horror! This occurred after two weeks since applying the 2nd dose (month) of the product I purchased from these people! Oh, heavens! If my home becomes infested, I will SUE. I have been relying on this med for 2.5 months and find the 3rd month is going to likely be USELESS. If I am not infested with fleas, it will be a miracle! Just went to petcaresupplies.com and hope it is a better and more reliable site.