Bought "Pet Action for our 2 cats last summer We had always used Frontline in years past. They spend about 1-2 hours per day outside in a fenced backyard. We ended up with fleas in the house and had to vacuum every day for a week and hot wash every thing and finally rent a hotel for 4 days while a a professional pest control service sprayed entire house and yard to get rid of fleas.Both cats had fleas. WE spent about $500.00 with staying in hotel ,boarding the cats and paying the pest control people. We will not make that mistake again . Thought since Pet action has the same ingredients it would work as well as Frontline at a pretty good savings.Pet action was a big FAIL. I asked our vet and she said that though the ingredients of the knock off Frontline products are the same, the carrier oil that carries the active ingredients into the pet's skin are not the same. Save time money and headache and use a product that really does work for fleas .. and that is the real Frontline. In the long run Frontline is way cheaper because it works. Never tried Pet Armor, but we are sticking with Frontline even if it costs $30.00 more.

Great product at a reasonable price.

Easy to apply and no mess

Only lasts for a few days and the fleas are back.

Worked as well as other, higher priced brands we have used.

Works effectively when administratored properly. Is easy to apply.

Works great. Used for years

So glad I found it at Sams Club

Successfully killed the fleas on all 5 of my cats and one kitten that didn’t even get the medicine, but is still nursing.

I've been using this product at least 6 years. It enables me to flea treat my cat colony at a reasonable price and IT WORKS!