K9 Advantix II Monthly Flea & Tick Prevention for Extra Large 55lbs+ Dogs - 4ml/2pk
$36.49
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- $11.59($0.48/fluid ounce)4.3 out of 5 stars with 185 ratings
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4.8 out of 5 stars with 51 reviews
effectiveness: 5 out of 5
quality: 5 out of 5
value: 5 out of 5
100% would recommend
2 recommendations
5 out of 5 stars
8 May, 2026
originally posted on influenster.com
Good product
I used this product. It is really working for my 60lb chow. Please follow the instructions when you apply it. Apply on a skin do not forget that. That product absorbs fast. My dog did not catch any fleas or ticks and we love hiking. Check on a box how often you need to apply the product.
5 out of 5 stars
30 April, 2026
originally posted on influenster.com
Absorbs quickly lasts a month.
[This review was collected as part of a promotion.] This K9 Advantix was very easy to apply to my dog. Didn’t have a smell and absorbed quickly. I luke that it lasts a month. And seems to work but my dog normally does not have a problem with fleas. It’s a good product highly recommend for your pet.
5 out of 5 stars
29 April, 2026
originally posted on influenster.com
Easy to apply
[This review was collected as part of a promotion.] K9 Advantix II for Extra Large Dogs is super easy to apply. It comes with instructions for those who have never applied a topical pesticide. It repels and protects against fleas, flea eggs, flea larva, ticks, biting flies, and more. We live out in the country and my dogs are sometimes exposed to creepy crawly creatures that carry these types of bugs. K9 advantix helped prevent my dog from being exposed to those for one month.
5 out of 5 stars
23 April, 2026Verified purchase
(no review title)
Fast service
5 out of 5 stars
22 April, 2026
originally posted on influenster.com
My 1st Pick
A great product that doesn't break the bank, this is my first choice for my 90 lb Labrador Retriever. I've been using this one for years for my fleas and tick preventative for my BFF. It's a large-ish tube so that first day leaves him a little oily in the application area, but it seems to dissipate by the following day. I've never noticed any adverse effects and it keeps the fleas and ticks away from my dearest doggy.
5 out of 5 stars
21 April, 2026
originally posted on influenster.com
Works great at keeping pets bug free
We apply this to our dogs every year and it is very easy to use. It goes on easy and is safe for them. The dogs have no ill affects when we use this. Our Danes have no side affects with this.
5 out of 5 stars
20 April, 2026
originally posted on influenster.com
Easy and effective
[This review was collected as part of a promotion.] Very happy with this product! Easy to apply and at least so far it is effective. It is comforting to know that I can let my doggo enjoy the outdoors without worrying about him bringing home pests.
5 out of 5 stars
16 April, 2026
originally posted on influenster.com
Great Product
[This review was collected as part of a promotion.] My dog tolerated this product well!! I think the tick repellant part will be helpful in the long run. I love the applicator with it. It seems like a great brand.
4 out of 5 stars
15 April, 2026
originally posted on influenster.com
K9 Advantix II works fast, keeps fleas and ticks a
[This review was collected as part of a promotion.] K9 Advantix II has been a game changer for my dog! It’s been great at keeping ticks and even mosquitos away. I love how easy it is to apply, and my dog hasn’t had irritation or side effects at all. It gives me real peace of mind knowing he’s protected year round. Overall, it’s reliable, effective, and definitely worth it. I highly recommend to any dog owner!
3 out of 5 stars
14 April, 2026
originally posted on influenster.com
So easy!
[This review was collected as part of a promotion.] It was extremely easy to open and apply! So painless! The instructions are right inside the box, very easy to find and follow. There is also minimum trash! Also minimal mess. Only a drop got on my hands and it didn’t feel gross.
5 out of 5 stars
14 April, 2026
originally posted on influenster.com
Easy, Fast and actually works
[This review was collected as part of a promotion.] It's that time of year again where those yucky yard pest start to bother your fur babies. K9 advantage can take care of that issue. It's easy to apply without a mess.
5 out of 5 stars
14 April, 2026
originally posted on influenster.com
Trusted to keep bugs off!
[This review was collected as part of a promotion.] I have always trusted this brand for my dogs. It is easy to open and use, and has little to no odor. Seems to always be just the right amount to give a good coverage from my dogs shoulders to hips. Works very well all month long to keep bugs off!
5 out of 5 stars
12 April, 2026
originally posted on influenster.com
Easy to use, effective protection with good value
[This review was collected as part of a promotion.] I've been using K9 Advantix Il for my dog and I'm happy with the results. The dosage is simple and easy to apply, and it starts working quickly against fleas and ticks. I didn't notice much residue after application, which I really like. The scent is a bit strong at first, but it fades after a while. Storage is easy since the packaging is compact and convenient. In terms of value, it's a little pricey but definitely worth it for the protection it provides.
5 out of 5 stars
Thumbs up graphic, would recommend
11 April, 2026
The best brand
This brand is underrated. I’ve been using this on all of my dogs for 16 years and we’ve never ever had a tick or flea. One time a tick tried to latch to my dog and it fell off and was dead, found it in our entry way hall as we back up to a pond and forest area. Highly highly highly recommend! Doesn’t bother my dog’s sensitive skin either.
5 out of 5 stars
8 April, 2026
originally posted on influenster.com
Best flea and tick prevention
[This review was collected as part of a promotion.] The brand of product and a tried and true flea and tick prevention product. It has been around and has worked for many years. It’s easy to apply however the downside for me is I do not like the residue it leaves on my dog for the next couple days. With that being said I do prefer the topical flea preventative to the oral only because it’s hard to get my dog to take any oral meds. After application this does dry pretty quick but like I said it does leave a residue. It hasn’t cause any irritation on my dog and I’ve used this for years. This works month long for keep fleas and ticks off my dog. Can’t recommend enough!
5 out of 5 stars
7 April, 2026
originally posted on influenster.com
Reliable
[This review was collected as part of a promotion.] K9 Advantix has never let us down! It’s so easy to use, and more importantly reliable. I know I don’t have to worry about my girl getting ticks or fleas while on this medication. Thank you for keeping my girl safe!
5 out of 5 stars
Thumbs up graphic, would recommend
2 April, 2026Verified purchase
Works well!
It works on my big dog.
5 out of 5 stars
2 April, 2026
originally posted on influenster.com
Benny approved!
[This review was collected as part of a promotion.] We love K9 Advantix II. It’s a trusted brand that we have used over the years with our dogs. We have never had any flea problems, but ticks are a big concern because we live near woods and wetland. K9 advantix gives me piece of mind knowing that my crazy dogs can run wild though the woods and jump in the pond and they will still be protected! We will continue to use it for our dogs and for our foster dogs!
4 out of 5 stars
1 April, 2026
originally posted on influenster.com
Very effective!
[This review was collected as part of a promotion.] Instructions are easy to follow. Safe and effective against ticks, fleas, and mosquitoes. It works really well and is easy to apply. It's waterproof too.
4 out of 5 stars
23 March, 2026
originally posted on influenster.com
Worked faster than I thought it would
[This review was collected as part of a promotion.] Spring is just really starting here and my girl is already fighting the fleas and ticks. I applied the k9 advantix and withing hours the fleas started dying. Was easy to apply. Easy to follow instructions