K9 Advantix II for Dogs
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At a Glance
Kills fleas and ticks within 12 hours
Kills flea eggs, pupae, larvae, and adults for 30 days
Kills and protects against mosquitoes, which are the primary cause of heartworm
Protect your dog from a variety of disease carrying ticks
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Rated 4.5 out of 5 by 625 reviewers.

  • Never had an issue
    Never had a problem with this, easy application and quick working time by on 01/03/2020
  • The best stuff!!
    This is the *ONLY* stuff I've used over the past 30+ years that actually kills the fleas and ticks. If the house is already full of fleas, putting this on your dogs (assuming it's just dogs and not cats in the house) *WILL* end the infestation within two months (two applications). I live in TN. We have every bug known to man here and in numbers that make the Amazon basin blush. The ticks here are just as thick as any flea problem you might run into ever. This stuff keeps my dogs absolutely, completely tick/flea free...and, we have a pretty good-sized pond that they swim in daily when the weather and water is nice enough for them. This stuff still doesn't wash out. Even though it says it's waterproof, one wouldn't expect it to actually be so with that much swimming they do per day (and night! They love to chase the bullfrogs off the banks into the pond!), but it stays on them and they remain bug free. I've seen dogs that I wanted to beat the owners senseless for because the poor dogs were eaten up with fleas or ticks and the poor dogs were wearing themselves out constantly scratching. It made me proud that I used something that works so well on my own dogs. Plus...it's a water(?) based, not oil based, so it spreads really fast and goes through the hair and down to the skin really fast and easily, so nowhere near the mess and loss of the stuff. No one on the planet at present has the money to pay me to get me to stop using K9 Advantix, and I'd be absolutely devastated if I was to find some day that it wasn't being made anymore. by on 12/12/2019
  • Great product
    We love K9AdvantixII...easy to use, works great. No fleas, ticks or mosquito bites- which means no heartworm risk, or Lyme, or any other associated illnesses! Purchasing through PetCare is the most affordable way to safely protect our dog, and without a reliable, affordable product, Casey wouldn't be able to spend time doing what he loves- spending time with us outdoors! by on 10/22/2019
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