$18.98
Give your furry friend the superior defense they deserve with K9 Advantix II! This vet-recommended topical treatment effectively safeguards against fleas, ticks, mosquitoes, and more, ensuring your dog stays comfortable and happy. With rapid action—beginning to kill fleas within just 12 hours—it's easy to apply and remains waterproof after 24 hours. Available in specific formulations for small, large, and extra-large breeds, K9 Advantix II is fragrance-free and requires no prescription, making pet care simple. Choose K9 Advantix II to provide lasting protection and peace of mind for you and your beloved canine companion!
Description
Your dog depends on you for safety, comfort, and well-being. One of the biggest threats to your dog’s health and happiness comes from pests like fleas, ticks, mosquitoes, lice, and biting flies. These parasites do more than cause itching—they can transmit dangerous diseases. For years, K9 Advantix II has been a trusted solution for pet owners who want to keep their dogs safe from these risks.
This article provides a comprehensive 3,500-word review of K9 Advantix II. You’ll learn what it is, how it works, the benefits, possible side effects, application tips, and comparisons to other flea and tick preventives. Whether you’re a new dog owner or have been caring for pets for years, this guide will help you decide if K9 Advantix II is the right choice.
What is K9 Advantix II?
A Vet-Recommended Topical Treatment
K9 Advantix II is a topical spot-on solution designed for dogs. Unlike oral chewables, this product is applied directly to your dog’s skin along the back. It is vet-recommended and widely available without a prescription.
Its primary function is to kill and repel pests before they can bite, making it different from many treatments that only act after the parasite feeds.
Manufacturer and History
K9 Advantix II was originally developed by Bayer Animal Health, a trusted name in veterinary medicine. Today, it is part of the Elanco Animal Health portfolio, a global leader in animal health solutions. The product’s formulation builds on decades of research in pest control and veterinary care, making it a proven option in the fight against parasites.
Why Pest Protection Matters for Dogs
Fleas
-
Cause constant itching and discomfort
-
Lead to skin infections and hot spots
-
Can transmit tapeworms
Ticks
-
Known carriers of Lyme disease, Rocky Mountain spotted fever, and ehrlichiosis
-
Can cause anemia in severe infestations
Mosquitoes
-
Transmit heartworm disease, a life-threatening condition if untreated
Lice and Biting Flies
-
Cause irritation, itching, and secondary infections
-
Reduce your dog’s quality of life if left untreated
Without proper prevention, your dog faces risks that go far beyond mild scratching. That’s where K9 Advantix II steps in.
How K9 Advantix II Works
Active Ingredients
-
Imidacloprid – A powerful insecticide that kills fleas by targeting their nervous system.
-
Permethrin – A synthetic compound that repels and kills ticks, mosquitoes, and lice.
-
Pyriproxyfen – An insect growth regulator that prevents flea eggs and larvae from developing.
Together, these ingredients provide a multi-layered defense against pests.
Contact Kill and Repel
Unlike many oral treatments that only kill parasites after they bite, K9 Advantix II works on contact. This means fleas, ticks, and mosquitoes don’t need to bite your dog to be affected. The product spreads across your dog’s skin and coat, creating a protective barrier.
Fast-Acting Formula
-
Begins killing fleas within 12 hours of application
-
Continues working for up to 30 days
-
Provides both treatment and prevention
Key Benefits of K9 Advantix II
Broad-Spectrum Protection
Covers fleas, ticks, mosquitoes, biting flies, and lice. Few other products offer this level of comprehensive defense.
Repels Before Biting
By repelling pests, K9 Advantix II helps prevent disease transmission that often happens during bites.
Easy Application
-
Topical solution applied once a month
-
Comes in pre-measured doses based on your dog’s weight
Waterproof Formula
After 24 hours, your dog can swim, bathe, or play in the rain without losing protection.
Fragrance-Free
No strong odors that may irritate your dog or your home.
Weight-Specific Options
-
Small Dog (4–10 lbs)
-
Large Dog (21–55 lbs)
-
XL Dog (over 55 lbs)
Each package is tailored to deliver the right dosage for effectiveness and safety.
Customer Testimonials and Real-World Results
Many dog owners praise the product for its effectiveness and reliability:
-
Sharon Roberts shared that her Golden Retriever stays completely pest-free, even during heavy flea and tick seasons.
-
Larry Wilson appreciated its effectiveness against mosquitoes, noting how it improved his dog’s comfort.
-
Patricia Collins explained that her dog found relief within 24 hours after years of struggling with other treatments.
These testimonials show the real-life benefits many families experience with K9 Advantix II.
Application Guide: How to Use K9 Advantix II
Step 1: Choose the Right Product
Select the formulation that matches your dog’s weight category. Never use the wrong size, as overdosing or underdosing reduces effectiveness and safety.
Step 2: Prepare Your Dog
-
Make sure your dog is dry
-
Part the fur between the shoulder blades until the skin is visible
Step 3: Apply the Solution
-
Place the applicator tip directly on the skin
-
Squeeze out the full tube along the back, from shoulder blades down the spine
-
Avoid applying where your dog can lick
Step 4: Let It Absorb
-
Allow 24 hours before bathing or swimming
-
Avoid touching the application site until it dries
Step 5: Repeat Monthly
Consistency is key. Apply every 30 days for continuous protection.
Safety Information
Is It Safe for Dogs?
Yes, when used as directed, K9 Advantix II is safe. It is not safe for cats, as permethrin is toxic to them.
Possible Side Effects
-
Temporary skin irritation at the application site
-
Mild itching or redness
-
Rare cases of lethargy or gastrointestinal upset
If your dog experiences severe reactions, contact your veterinarian immediately.
Precautions
-
Do not use on puppies under 7 weeks of age
-
Ensure other pets (especially cats) do not lick or contact the treated area until dry
-
Wash hands thoroughly after application
Comparing K9 Advantix II with Other Flea and Tick Treatments
K9 Advantix II vs. Frontline Plus
-
Frontline Plus kills fleas and ticks but does not repel mosquitoes or biting flies
-
K9 Advantix II offers broader coverage
K9 Advantix II vs. Seresto Collar
-
Seresto provides long-term protection (up to 8 months)
-
K9 Advantix II requires monthly applications but is easier to stop or switch
K9 Advantix II vs. Oral Treatments (like NexGard or Bravecto)
-
Oral treatments kill pests after they bite
-
K9 Advantix II repels and kills on contact, reducing bite risk
Each option has advantages, but K9 Advantix II stands out for its broad protection and repellent action.
Veterinary Perspective
Most veterinarians recommend year-round pest prevention. Even in colder months, fleas and ticks can survive indoors or during mild weather. K9 Advantix II is often chosen because of its dual action—repelling and killing pests before bites happen.
Frequently Asked Questions
Can I use K9 Advantix II on my puppy?
No, only use on dogs 7 weeks or older.
Can I use it on cats?
No. Cats should never be exposed to K9 Advantix II due to permethrin toxicity.
How long before my dog can get wet?
Wait at least 24 hours after application.
Does my dog need a prescription?
No. K9 Advantix II is available without a prescription.
What if I miss a dose?
Apply as soon as you remember, then resume your monthly schedule.
Subscription and Savings Options
To ensure consistent protection, K9 Advantix II offers a Subscribe & Save program. This service provides:
-
Automatic monthly deliveries
-
Exclusive discounts
-
Peace of mind knowing your dog won’t go unprotected
Why Choose K9 Advantix II?
-
Proven effectiveness backed by veterinary science
-
Comprehensive protection beyond fleas and ticks
-
Easy-to-use, once-a-month application
-
Trusted brand with a history of innovation
For pet owners seeking convenience, reliability, and thorough coverage, K9 Advantix II continues to be a top choice.
Conclusion
Protecting your dog from fleas, ticks, mosquitoes, and other pests is not optional—it’s a vital part of responsible pet care. K9 Advantix II delivers fast, effective, and broad-spectrum protection in a convenient topical form. With its repellent action, waterproof formula, and weight-specific dosing, it provides peace of mind for owners and comfort for dogs.
By using K9 Advantix II regularly, you ensure your dog stays happy, healthy, and free to enjoy life without the constant irritation and risks posed by parasites.