K9 Advantix II Monthly Flea & Tick Prevention for Medium Size 11-20lbs Dogs - 1ml/2pk
$35.99
In Stock
Eligible for registries and wish lists
About this item
Additional product information and recommendations
Discover more options
Frequently bought together
Guests also viewed
Related Categories
Guests are saying
This product is highly regarded for its effectiveness in keeping dogs free from fleas, ticks, and mosquitoes. Guests appreciate its easy application and the absence of strong odors. Many have noted that it does not irritate their pets' skin and provides long-lasting protection. While some guests experienced minor issues with application messiness or temporary wetness, the overall consensus is that it is a reliable and affordable choice for pet owners looking to protect their furry friends.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.4 out of 5 stars with 226 reviews
5 out of 5 stars
6 May, 2026
originally posted on influenster.com
Very effective.
Spring has started and me and my dog loves to go for a walk everyday and one day she started scratching and scratching which is strange and found out she got some fleas probably got it while we were on a walk, went to the store and bought this and let me tell you after three days, fleas are gone and my dog is happy.
5 out of 5 stars
6 May, 2026
originally posted on influenster.com
It will last and truly get the job done.
Never had any fleas or ticks on my dog after having this. We live in a rural wooded area and he runs constantly, yet we have never found a flea or tick on him. It’s last longer than the time it says as well
5 out of 5 stars
4 May, 2026
originally posted on influenster.com
Good product
[This review was collected as part of a promotion.] Haven’t had any issues with fleas or ticks, and my pup has a lot of interaction with other dogs in daycare, so it seems to be working. It’s easier to use and it’s a good option for dogs that don’t like to take pills
5 out of 5 stars
4 May, 2026
originally posted on influenster.com
Works well
[This review was collected as part of a promotion.] K9 advantix worked well on my dog to repel fleas and ticks. The medication was simple to apply and I did not notice any negative odor from it. I will definitely be using this product again.
5 out of 5 stars
3 May, 2026
originally posted on influenster.com
Seems to be good!
[This review was collected as part of a promotion.] While there isn’t many ticks where I live at the moment, my dog seemed to take this well. I haven’t seen any ticks or fleas on him since. There hasn’t seemed to be any side effects and it’s compact making it easy to store.
5 out of 5 stars
29 April, 2026
originally posted on influenster.com
Love this product
This is the only product I use now it works great I have used other products but they did not works as good as this product and it helps me to get the problem solved without going to a vet and my dogs don't mind it at all I will never buy anything else. My dogs don't scratch all the time now and it is easy to apply to my dogs
1 out of 5 stars
25 April, 2026Verified purchase
Pass
Dog has been itching since applying. Also found 2 ticks on her , alive 24 hours after application.
5 out of 5 stars
25 April, 2026
originally posted on influenster.com
Very good product
Love this stuff, works great for my golden retriever,only negative is the oily feeling to fur for few days after application,but it does work, and no rashes or reactions,also decent priced
5 out of 5 stars
22 April, 2026
originally posted on influenster.com
10/10
[This review was collected as part of a promotion.] Very easy to apply and no side effects. Does not irritate the skin and is very inexpensive. I recommend 100 percent!!! My dog feels great and I feel great
5 out of 5 stars
20 April, 2026
originally posted on influenster.com
Super simple and easy protection
[This review was collected as part of a promotion.] The directions were super clear and easy to follow. I like having a topical application versus an oral sometimes. It was a good amount of product. The texture is a clear thin liquid, and we haven’t noticed any side effects with our dogs.
4 out of 5 stars
19 April, 2026
originally posted on influenster.com
Effective treatment
Very effective product. Rarely find ticks on my girls and none actually feeding. Does make for a bit of a mess on short haired dogs but it's temporary and completely manageable.
5 out of 5 stars
16 April, 2026
originally posted on influenster.com
K9 Advantix
[This review was collected as part of a promotion.] Thanks for sending me this product! It is a monthly dose that repels and kills ticks, fleas and mosquitoes. Now that it is summer time, my dog will be using the product. The instructions are well written and easy to follow.
5 out of 5 stars
14 April, 2026
originally posted on influenster.com
Effective against parasites
[This review was collected as part of a promotion.] Works like a charm and I mean it! I have diggers and they love to be face down in grass, leaves and mud so keeping the parasites off is a must for their health. This product is easy to use, comes in size appropriate tubes and doesn’t itch or burn. I’d recommend it for your pets well being.
5 out of 5 stars
3 April, 2026
originally posted on influenster.com
Easy to Use
[This review was collected as part of a promotion.] This product is great that keeps my pup and me happy . Louis my pup is bug free free and no more itching and biting. The product is so easy to apply and use I highly recommend this and have already went and more for Louis , when he is happy I am happy . Great Product
4 out of 5 stars
31 March, 2026
originally posted on influenster.com
Good option
[This review was collected as part of a promotion.] Extremely easy to apply. Absorption was okay My dog's hair is slightly textured so I did feel like I could feel/ see it longer than other brands I've used before. The duration of use is very nice. I also like that it does not have an over powerful smell at all.
5 out of 5 stars
30 March, 2026
originally posted on influenster.com
Great!
[This review was collected as part of a promotion.] This is not our first time trying this product so was happy we were selected as this is effective. My dog struggles with taking pills so the cream is absolutely great! Very easy to apply and works well.
4 out of 5 stars
26 March, 2026
originally posted on influenster.com
Works
This is one of the best OTC flea options for our dogs here in Texas. Most other options no longer work as fleas have become resistant however this one still does as advertised!
5 out of 5 stars
21 March, 2026
originally posted on influenster.com
Dogs
[This review was collected as part of a promotion.] K9 advantix comes in an easy to store package. My dog, Nova, did extremely well with it. Extremely effective high made me quite happy. No unwanted side effects. A great value and a great item to have when you need it.
4 out of 5 stars
21 March, 2026
originally posted on influenster.com
Good product for repeling insects with a nice sque
[This review was collected as part of a promotion.] I have used K9 Advantix Il before and it has been really effective at keeping fleas, ticks, and mosquitoes off my 19lb cockapoo with just one monthly application. Although, I'm not 100% sure about the length of repeling mosquitos. It works for maybe a week, but they still like him on walks. It's easy to apply with the small squeeze bottle and dries quickly, which makes the process pretty hassle-free for us. I like that it also repels insects instead of just killing them after they bite. Just be sure to follow the weight guidelines and keep it away from cats. Overall, a reliable and convenient solution for protecting my dog for a month.
4 out of 5 stars
21 March, 2026
originally posted on influenster.com
Effective for the month
[This review was collected as part of a promotion.] Effective but leaves his fur a little wet and oily. They tend to prefer the chewable ones rather than the liquid ones. Enough provided to cover his entire body from neck to bottom.