Skip to product information
1 of 9

K9 Advantix II Small Dog Flea Tick & Mosquito Treatment 4-10 lbs 6 Doses

K9 Advantix II Small Dog Flea Tick & Mosquito Treatment 4-10 lbs 6 Doses

Regular price $56.40
Regular price Sale price $56.40
Sold out
26 people are viewing this right now

Shipping & Returns

Free USA Shipping on Orders Over $120

We ship all US domestic orders within 1-3 business days

Returns & Refunds Policy

30-Day Return Policy

We offer a 30-day return policy from the date of delivery.

To qualify for a return:


  • The item must be unused

  • The item must be in original packaging

  • Proof of purchase is required

Non-Returnable Items

The following items cannot be returned:


  • Opened pet food or treats

  • Personalized products

  • Clearance or final sale items

  • Hygiene-related pet products

Damaged or Incorrect Items

If you receive a damaged or incorrect product:


  1. Contact us within 72 hours of delivery

  2. Provide photos of the product and packaging

  3. We will arrange a replacement or full refund

Return Shipping


  • If the return is due to our error (damaged or incorrect item), we cover return shipping

  • If the return is due to customer preference, the customer pays return shipping

Refund Processing

Once we receive and inspect the returned item:


  • Refunds will be issued to the original payment method

  • Processing time: 5–10 business days
View full product details

If your small dog spends time outdoors, even short walks can expose them to fleas, ticks, mosquitoes, and other biting pests. K9 Advantix II Small Dog Flea & Tick Treatment is designed to provide reliable monthly protection for dogs weighing 4–10 lbs, helping your pet stay comfortable and protected every day.

This easy-to-use topical treatment works quickly to kill fleas and repel ticks, mosquitoes, biting flies, and lice before they become a bigger problem. Each box includes 6 convenient doses, giving your dog up to six months of continuous protection with simple monthly applications.

One of the biggest advantages of K9 Advantix II is that it kills fleas through contact, which means pests do not need to bite your dog to die. The fast-acting formula begins working within hours and continues protecting your pet for up to 30 days after each application.

Key Features

  • Designed for small dogs weighing 4–10 lbs
  • Includes 6 monthly doses
  • Kills fleas quickly and helps prevent reinfestation
  • Repels and kills ticks
  • Helps protect against mosquitoes and biting flies
  • Waterproof after 24 hours
  • Easy topical application
  • Fragrance-free formula
  • No prescription needed

Effective Monthly Flea & Tick Protection

Fleas and ticks can cause discomfort, itching, and skin irritation for dogs. K9 Advantix II for small dog provides broad protection by targeting adult fleas, flea eggs, and larvae to help interrupt the flea life cycle.

The formula spreads across your dog’s skin surface after application, providing full-body protection without leaving a heavy or greasy feeling. With regular monthly use, it helps keep infestations under control and makes daily life more comfortable for your pet.

Helps Protect Against Multiple Pests

K9 Advantix II does more than standard flea treatments by helping protect against:

  • Fleas
  • Ticks
  • Mosquitoes
  • Biting flies
  • Chewing lice

This makes it a practical choice for dogs living in areas where pests are active throughout the year.

Frequently Asked Questions

1-How quickly does K9 Advantix II start working?

K9 Advantix II begins killing fleas within 12 hours after application and continues protecting your dog for up to 30 days.

2-Is K9 Advantix II safe for small dogs?

Yes, this formula is specially designed for dogs weighing between 4–10 lbs and can be used on puppies 7 weeks and older.

3-Can my dog get wet after using K9 Advantix II?

Yes, the treatment becomes waterproof after 24 hours.

4-Does K9 Advantix II only kill fleas?

No, it also helps repel and kill ticks, mosquitoes, biting flies, and chewing lice.

5-How often should I apply the treatment?

Apply one dose every 30 days for continuous flea and tick protection.

  • 5 stars: 22 (79%)
  • 4 stars: 6 (21%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
G
Grace

I purchased this treatment for my little dog and have been happy with how straightforward it is to use. The individual doses make monthly applications easy to remember and keep organised. I also like that the package does not take up much cupboard space.

O
Oliver

I’ve found K9 Advantix II fairly easy to work into my dog’s regular care routine. The applicator design makes it simple to apply the dose directly, and there is no tablet involved. The packaging feels sturdy enough for storage, and the six treatments are nicely organised.

N
Natalie

The six-dose pack is useful and saves me from buying a new treatment every few weeks. Each applicator is individually packaged and easy to identify, which I find helpful when keeping track of applications.

E
Ethan

This has been a practical option for my 4–10 lb dog. I appreciate that the doses are specifically sized for smaller dogs rather than having to estimate an amount. The application process is simple, although my dog is not particularly cooperative when I try to apply anything to her.

C
Claire

I bought this for my small dog and found the individual doses very convenient. The applicator is easy to handle, and the instructions are straightforward, so applying the treatment only takes a few minutes.

O
Olivia

I like having six doses in one pack. Makes the monthly routine simple.

E
Emily Smith

The 4–10 lb size was a good fit for my small dog. Easy to use.

S
Sophie Williams

Easy to apply and my little dog tolerated it well.

A
Andrewlewis

K9 Advantix II Small Dog Flea Tick & Mosquito Treatment has been a useful product for my 4 pound dog. I like the simple design, easy application and monthly schedule. The six dose package is practical and saves time.

S
Stephanieclark

This product has made flea prevention much easier for me. The applicators are convenient and the instructions are clear even for first time users. I appreciate the protection options included in one treatment.

B
Brian Garcia

I have been satisfied with the performance of K9 Advantix II for my small dog. The product is easy to apply and feels like a high quality treatment.

R
Rachelthompson

This flea and tick treatment is one of the easier products I have used. The small tubes are convenient and the application does not take much time. I like the clean design and monthly dosing schedule.

M
Martin

I found K9 Advantix II Small Dog Treatment to be a solid product overall. The quality of the packaging and applicators is impressive and the instructions are easy to follow. It works well for my dog’s needs, although results may vary depending on outdoor exposure and local pest activity.

H
Harris

My small dog spends a lot of time in the yard, so I wanted a dependable flea and tick solution. This product has a convenient design and is very simple to apply. The six dose package provides good long term value and I like the peace of mind it gives me.

R
Ryanwhite

I bought K9 Advantix II after dealing with seasonal flea problems. The treatment is easy to apply and the packaging includes helpful directions. I think the product offers good protection and reliable performance.

J
Jackson

This product is simple, convenient, and easy to keep on hand. I like that the six doses come individually packaged, making monthly applications organized. My small dog has had no issues with it and I appreciate the added mosquito protection. It is a little expensive, but the quality feels worth it.

D
Danielmoore

K9 Advantix II Small Dog Treatment has been a practical choice for my dog’s flea and tick prevention. The instructions are clear, and applying the treatment is quick. The product feels well made and the packaging is professional. I have had a good experience and plan to continue using it.

L
Laurenthomas

I purchased this product for my small rescue dog and found it very convenient. The six dose package lasts for months and the individual tubes are easy to identify. I like the overall quality and effectiveness, though I would prefer a stronger seal on the outer packaging.

J
Jamestaylor

I have tried several flea products, and K9 Advantix II stands out because of its ease of use. The applicator design makes it simple to place correctly and my dog handled it well. The price is slightly higher than some alternatives, but the convenience makes it worthwhile.

E
Emilythomas

This flea and tick treatment has been useful for keeping my small dog protected during warmer months. I like the compact packaging and the fact that it includes six doses. It is straightforward to apply and does not require extra equipment.

D
Davidanderson

I bought this treatment for my 10 pound dog and have had a positive experience. The application process takes less than a minute and the instructions are easy to understand.

S
Sarahmartinez

K9 Advantix II has been a helpful addition to my dog’s grooming routine. I appreciate that each dose is individually sealed and simple to use. The product design is practical and the six treatments provide good value. I would recommend it to other owners of small dogs.

M
Matthewwilson

This product was easy to apply and the packaging feels sturdy and well designed. I use it for my small mixed breed dog during outdoor walks. It appears to help reduce pest problems, though I still check my dog regularly after hiking. The overall quality is good for the price.

A
Amandadavis

I like the quality and convenience of K9 Advantix II Small Dog Treatment. The six dose pack is a great value because I do not have to reorder frequently. My dog tolerates it well and the small tubes are easy to store.

C
Christopherbrown

This treatment works well for my small breed dog and provides good coverage throughout the month. I found the instructions simple to follow and the individual doses are nicely packaged.

A
Ashleysmith

I purchased K9 Advantix II for my Chihuahua and I appreciate how easy it is to use. The design of the applicator makes placement quick and mess free. My dog spends time outside, so having protection against fleas, ticks and mosquitoes gives me extra confidence.

M
Michaeljohnson

This flea and tick treatment has been a convenient option for my small dog. The tubes are easy to open and apply and the product feels like a quality solution compared to others I have tried.

W
Williams

I have been using K9 Advantix II Small Dog Flea Tick & Mosquito Treatment for my 8pound terrier and it has worked well so far. The application is simple, the packaging is clear and the six dose supply offers good value.