What do you use to protect your pets from fleas/ticks?

[BJD78]

Used Frontline for several years and ever any flea or ticks, but figured I would save a few $ and tried Pet Armor Plus last summer and both cats and both got fleas. Pet Armor has Same active ingredients as Frontline :fipronol 9.8% and S-Methoprene 11.8% and other ingredients 78.40%. Ended up paying for an in house exterminator and leaving house for 2 days and then went back to Frontline. My vet said that even though active ingredients are the same, Frontline has a (other ingredient) 78.40% that ensures that the active ingredient stays on the pet. I wish pet armor would have worked as it was half the price as Frontline. Frontline is always about $50-$60 no matter where you buy it. but in our case it just seemed to work a lot better no fleas.