I have three cats, they all have fleas. I used the hartz ultra pro drops as sort of a last ditch effort before i had to take all of them to the vet to get the good stuff. When i put it on, it was oily and spread all across their necks. I didnt think anything of it because the label said it had to dry. Well probably 6 or 7 hours later it was still oily. I went online and typed in Hartz flea treatment and this site was the first one at the top of the page. I was curious so i clicked on it and my stomach fell to the floor. I love my cats and the thought of losing any one of them is too much. So i requested the assistance of my little sister, gathered all the cats in the bathroom and then gave them all baths with Dawn. Now they are all traumatized and i am scratched up to the point where it looks like i got into a fight with a rake, but it was well worth it if i have intervened in time to save my cats. Now, i am going to get the good stuff from the vet no matter the cost and pay for someone to give them a flea bath. The Hartz products should be off the shelves and they should be ashamed of themselves for not doing the right thing and taking the products off the shelves themselves. The good news in all this is i have already seen a few dead fleas on my cats that i have picked off and thrown away. Thank You for putting this information out their for people to find, you will have my eternal gratitude.