Hartz UltraGuard Dual Action Flea & Tick Spot Treatment for Dogs, 5-14 lbs, slide 1 of 1

Hartz UltraGuard Dual Action Flea & Tick Spot Treatment for Dogs, 5-14 lbs, 3 Doses (3-mos. supply)

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Help your canine companion fight pesky fleas and ticks with this Hartz UltraGuard Dual Action Flea & Tick Topical Dog Treatment! This fast-acting formula helps to kill fleas along with brown dog ticks, deer ticks, plus it helps to prevent re-infestations. This formula lasts for 30 days, which means you only need to apply it once a month. Plus, the quick drying formula stays on, ensuring your pal stays protect throughout the month. This package contains 3 monthly applications. When it comes to flea and tick control, Hartz has got your pal covered!

Key Benefits
  • This topical formula is designed to protect your canine companion against fleas and ticks including brown dog ticks and deer ticks.
  • One application of UltraGuard Dual Action formula keeps your pal protected from pesky pests for up to 30 days.
  • Tick and flea solution may also prevent re-infestation for the convenience of both pets and pet parents alike.
  • UltraGuard Dual Action treatment breaks the flea life cycle so that your dog can continue to do what he loves.
  • This topical solution is suitable for dogs between 5-14 pounds and comes with 3 monthly treatments.

Do not use on cats. Read entire label before each use. Use only on dogs or on puppies 12 weeks of age or older. Do not use on dogs or puppies weighing less than 5 pounds. Causes moderate eye irritation. Avoid contact with eyes, skin or clothing. Wash hands thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using toilet. .
No toy is indestructible. Supervise your pet when using since small parts can present a choking hazard or internal blockage. Discontinue use if the toy is damaged. Keep out of reach of children

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
  • Weight
    1.6 ounces
  • Usage
  • Lifestage
  • Breed Size
    Small Breeds
  • Product Form
  • Health Condition
    Fleas, Ticks

Active Ingredients: Etofenprox 55.0%, Piperonyl Butoxide (PBO) 10.0%, n-octyl bicycloheptene dicarboximide (MGK 264) 1.0%, Pyriproxyfen (Nylar) 0.5%.

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

  • Pull off cap. Turn the cap around and place on top of tube. Simply press cap down to break the seal of the tube. Remove cap carefully.

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

  • Repeat every month.


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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Rating: 4.0 of 5 stars 4 Reviews 4 Reviews 4 out of 5 Stars

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75% Recommend

75% of reviewersrecommend this product

Rating: 4.0 of 5 stars 4 / 5

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  • 5 out of 5 stars

    Yes it works

    By Fingirl93 on Aug 31, 2021

    I've used these during flea season for the last couple of years. Last year was my first time seeing a flea on my Chi, works as good as the super expensive treatments. No more fleas! I do use the three of them one per month.

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  • 5 out of 5 stars

    short haired chiweenie

    By DogDad on May 22, 2021

    Works for my 2 year old. Was oddly surprised. Considering the price. Every Sunday we take him to the in-laws (who use frontline) and my little guy is the only one not having ticks taken off him. Highly recommend to at least try!

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  • 5 out of 5 stars

    Hartz Flea control is the best

    By Diana on Mar 27, 2021

    Hartz is great. This flea treatment works great for our little chihuahua. Thank you Chewy for carrying it.

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  • 1 out of 5 stars

    Does Not work

    By Amanda on Apr 28, 2021

    Got this for my dachshund who is 15 and did not work at all.

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