I don't know why this product has bad reviews but I've been using it on my dog for 8 months now and he has no side effects or any fleas on him. He's a border collie mix, 1 year old and 5 months, weigh about 56lbs, and likes to be outside. I guess it's not for some dogs but it works for mine.

My husband and I have used this on our two dogs for almost 4 years now and have not had any issues with flea or ticks. We apply it on the same day every month (I have an alarm on my phone that goes off to tell me). Our veterinarian had no issues with it either.

My dog was infested with fleas. I gave him a shower and killed literally thousands of fleas.. I felt terrible for ignoring the problem, a week later was infested again. I used other product that didn't work, then I gave this product a try. Thank God I did. Just after 4 days I checked my dog and surprise, only found literally one sick flea didn't even try to jump. He seems so happy and relieved. I don't know if it will last a month but even if it doesn't I could give him a shower to keep infestation under control until next dosis if fleas returned. But so far is like a miracle. Thank God I found this product. Dog extremely happy and he takes good naps now.

I've been using this, with good results, for quite a while. The most recent treatment failed to eliminate fleas from my dogs. I don't know if I got a bad batch, if the formula has changed, or if the fleas have become resistant but my dogs were treated on February 1st and again on March 2nd, and they are still infested with fleas on March 11.

We bought this because it was a main item at Sam's Club but it has been a negative for us. Our dog, 35 pound Wheaton Terrier starts chewing on his paws and scratching at his ears after we put it on him. Plus it leaves an oily feel to his hair. I wrote the company and NO RESPONSE OR REPLY OR HELP! That is why I am writing this now!

I used this on an Australian Shepherd and an Australian Cattle Dog/ Border Collie mix who both had fleas. It didn't kill any fleas so I put another dose on 2 days later and it still didn't work. I then bought a Seresto flea collar and put it on one dog. Within 24 hours almost every flea was dead so I'm buying another Seresto collar and trowing this PetAction junk away.

We have been using this for years on our German Shepherds. Works great!

I've been using this for several months and have not seen any fleas.

Exact same ingredients as Frontline Plus and has kept both of my Dogs free and clear of both

Great product. My dog has never had a problem with fleas. Love this and easy to apply.