Hartz UltraGuard Plus Flea & Tick Spot Treatment for Dogs & Puppies, slide 1 of 1

Hartz UltraGuard Plus Flea & Tick Spot Treatment for Dogs & Puppies, 3 Doses (3-mos. supply)

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Tell uninvited guests to “bug off” with the Hartz UltraGuard Plus Topical Flea & Tick Treatment for Dogs & Puppies. This monthly treatment immediately starts working hard to kill fleas, flea eggs and brown dog and deer ticks—and it even repels mosquitoes as an added benefit. The patented Pro-cision Flo applicator system penetrates your pet’s hair for application at the skin level, rather than getting absorbed by the coat. It dries quickly, which is great for dogs that love to immediately start rolling around after application. And the best part? It starts working to kill fleas within the first 15 minutes. This paw-ticular treatment is designed for dogs and puppies who weigh 61-150 pounds.

Key Benefits
  • Monthly treatment kills fleas, flea eggs, brown dog ticks and deer ticks and repels mosquitoes.
  • Starts working to kill fleas within 15 minutes and lasts for 30 days.
  • Patented Pro-cision Flo applicator system penetrates pet hair for application at the skin level.
  • Quick-drying formula stays on and doesn’t rub off.
  • Every purchase comes with 3 monthly treatments for dogs and puppies who weigh 61-150 pounds.

Causes moderate eye irritation. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after handling and before eating.

Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

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  • Item Number
  • Dimensions
    5.9 x 3.7 x 1 inches
  • Weight
    2.56 ounces
  • Usage
  • Lifestage
    Adult, Puppy
  • Breed Size
    Extra Small & Toy Breeds, Small Breeds
  • Product Form
  • Health Condition
    Fleas, Ticks

1.) Remove one applicator tube from the package and hold in an upright position pointed away from your face.

2.) Twist dispensing tip clockwise about 1/2 turn while pushing down to break the tube's seal. Do not remove the dispensing tip.

3.) Position the dispensing tip on the dog's back between the shoulder blades. Use the dispensing tip of the tube to part the dogs hair so that the product will be applied at skin level. Begin squeezing out the contents of the tube to form a stripe as you move from the shoulder blades along the dogs back to the base of the tail.

4.) Repeat every month. Do not bathe your dog 48 hours prior to application.

5.) Separate treated dog from other pets for 24 hours after the treatment has been applied.

Do not use on dogs or puppies less than 12 weeks old or weighing less 5lbs.


Where is this product sourced from?

We source all our products from manufacturer approved distributors or directly from the manufacturers. Chewy takes pride in ensuring that our furry friends’ wellbeing is always our top priority. We have worked hard to partner with all of the manufactures to deliver 100% authentic products

About UltraGuard Topicals for Dogs

The Hartz Commitment

The Hartz Commitment

Hartz treasures the bond between you and your pet, and they’re committed to providing you with products designed to protect and rid your pets of fleas, ticks and mosquitoes year-round. Make your pet one of the 5 million furry family members Hartz helps keep pest-free and happy every year!

UltraGuard Topicals for Dogs

Fleas and ticks aren’t just an annoyance for your dog, they can also transmit diseases. Hartz UltraGuard topicals help protect your pet from fleas and ticks for 30 days, providing non-stop control you can rely on. They help stop ticks in their tracks before they can bite and keep fleas at bay, so they can’t transmit parasites and illness.

UltraGuard Topicals for Dogs

Affordable Protection You Can Count On

Hartz UltraGuard Flea and Tick Topicals start killing fleas and ticks fast and keep working for 30 days, stopping the flea life cycle and preventing re-infestation. The formulas stay on and won’t rub off, and they come in an easy-to-apply, single-dose tube that works for both long and short hair.


Fast-acting topical drops kill fleas, flea eggs and ticks on dogs, plus they kill any new fleas within 15 minutes.


The long-acting formula provides round the clock flea and tick protection, help to prevent re-infestation for up to 30 days.


The active ingredients translocate through the glands that lubricate a dog’s coat with oil. When applied, the compound quickly translates ac


Fleas thrive in warmer months, but they can survive winters, too. Get full protection all year with just a monthly topical application.


All UltraGuard topical products have easy to use applicators so your pup can go on and play the day away.

Choose the UltraGuard Protection That’s Right For You





















About Hartz

Hartz has been delivering exceptional consumer pet care products for over 90 years. Their goal is to provide innovative, trustworthy and affordable products that strengthen the bond between pets and people, and to offer the knowledge and support people need to better care for their pets. Their mission is a world where every pet can lead a healthy, happy and long life in a loving home.

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About Hartz

Rating: 2.0 of 5 stars 7 Reviews 7 Reviews 2 out of 5 Stars

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43% Recommend

43% of reviewersrecommend this product

Rating: 2.0 of 5 stars 2 / 5

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  • 4 out of 5 stars

    Hard to open

    By GPiers on Jul 9, 2020

    Product remained effective despite a skunk attack and subsequent washing a few days later. The applicator needs enough length to reach the dogs skin, but cutting the tip to release treatment while maintaining that length is tricky.

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  • 4 out of 5 stars

    Satisfied Pups

    By Deel on Jun 3, 2020

    I buy these for all 3 of my dogs coz we have ticks and National Forest around us.. IT WORKS!!!

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  • 1 out of 5 stars

    Using nothing is better than this!

    By Katie on May 23, 2020

    Both dogs had bad reaction to drop putting them in vet ER! Never again!

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  • 1 out of 5 stars

    You get what you pay for.

    By LexiLou on Sep 3, 2017

    We chose Hartz because its a fairly well known brand... But it didnt work. The fleas stayed away from where it was applied and infested behind his ears and underbelly instead.

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  • 1 out of 5 stars

    Trea's flea treatment

    By Gena on Aug 22, 2017

    Didn't help Trea at all. If anything like aftershave Cologne for fleas...we then went with oral protection that worked!!!

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  • 1 out of 5 stars

    Never again

    By ANNA on Aug 10, 2017

    Don't waste your money ! This product simply does NOT WORK !

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  • 2 out of 5 stars

    Not the Best

    By litterpan on Aug 10, 2017

    I don't care for this treatment I still found fleas on my dogs.

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