Sentry Natural Defense Flea & Tick Dog & Puppy Spray, 8-oz bottle

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Natural Defense Natural Flea & Tick Spray for Dogs & Puppies kills and repels fleas and ticks yet its safe to use on your dog or puppy and around your family when applied as directed. Each easy-to-use pump spray features natural active ingredients such as peppermint oil cinnamon oil lemon grass oil thyme oil and eugenol.

Key Benefits
  • Kills and repels fleas, ticks and mosquitos with natural ingredients.
  • When used as directed safe around pets and family alike.
  • Contains natural ingredients and provides a fresh spice fragrance.
  • Can be used on dogs and puppies.
  • Veterinarian tested.

KEEP OUT OF REACH OF CHILDREN. Avoid contact with eyes. Wash hands thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. Do not apply product directly in or on eyes, mouth, nose or genitalia of dogs. Do not use on (or cause exposure to) puppies under 12 weeks of age. Consult a veterinarian before using this product on debilitated, aged, medicated, pregnant or nursing dogs. Sensitivities may occur after using ANY pesticide product for pets. If signs of sensitivity occur bathe your pet with mild soap and rinse with large amounts of water. If signs continue, consult a veterinarian immediately.

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.

See all items by Sentry

  • Item Number
  • Brand
  • Lifestage
    Adult, Puppy

For use on dogs and puppies. Do not use on puppies under the age of 12 weeks. Spray the dog with the nozzle about 8-12 inches from the pet. Start spraying the dog at the tail, making sure to spray the entire coat of the animal, including the legs, tail and underbody. With your hand, fluff the hair against the way it normally lays to assure that the spray penetrates the coat to the skin. Do not saturate the dog and do not spray in the face, eye or genitals. Repeat as necessary. Dog may be treated indoors or outdoors. In order to help reduce the occurrence of fleas and ticks, this product is best if used year round.


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

Is SENTRY Natural Defense effective?

Yes. SENTRY Natural Defense® contains natural active ingredients that kill fleas, ticks and mosquitoes on contact. In addition, the natural oils are highly effective in repelling pests.

How long do SENTRY Natural Defense Squeeze-Ons work?

Studies show the SENTRY Natural Defense® Squeeze-Ons are efficacious for up to four weeks. However, if your pet is in a highly infested area, repeat applications may be made if necessary. Do not apply more often than once every two weeks.

How do SENTRY Natural Defense products work to kill fleas and ticks and repel mosquitoes?

The active ingredients in SENTRY Natural Defense® products block the neurotransmitter octopamine, killing insects quickly. Since octopamine is found only in insects, it is safe to use SENTRY Natural Defense® products around pets and people, when used as directed.

19 Reviews 19 Reviews 4.4 out of 5 Stars

84% Recommend

84% of reviewersrecommend this product

4.4 / 5

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19 Reviews

Showing 1-10 of 19 Reviews

  • 5 out of 5 stars

    Works GREAT..Natural ingredients

    By on

    I use this on my 5 long haired chihuahuas & on their bedding-Never have a flea or tick throughout the seasons. Makes the bedding smell fresh & will keep any stray bugs that come in from outdoors away from the pets. I have seen it deter mosquitoes from the dogs in the heaviest mosquito breeding seasons when the flying pests are hovering for a blood meal..they just will not land on the dogs. I spray them once a week or every few days in the buggy NJ summer. The dogs have grown to enjoy the scent & the attention they get when I brush & spray them..I wish I could use it on myself- the mosquitoes just love my blood. It is an all natural oil product.

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  • 5 out of 5 stars

    Works for my puppy! Strong smell

    By on

    I am giving this product 5 stars because it works wonders, and from what I know, it’s made with natural ingredients. A cheaper & healthier route opposed to flea & tick medication. It does have a strong smell that my puppy hates, but I really don’t mind it. It does the job.

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  • 1 out of 5 stars

    Flea spray

    By on

    Omg stinks so bad and doesn’t work. Maybe if you used it on a dog you were never around and it worked but my dog still had fleas but I only used it once and then had to bathe my dog twice to get rid of the smell.

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  • 5 out of 5 stars

    Works great

    By on

    I sprayed my dog down with this before taking him for a run in the woods. Did not find one tick on him. We live where the ticks are really bad right now. Really happy with this product

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  • 4 out of 5 stars

    Sentry Flea & Tick Spray for Puppies

    By on

    Works really good. Just have a strong peppermint smell. When using I prefer you & Your pet be outside when spraying & let your pet stay outside for an extra 5 mins too let the spray set on it's coat.

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  • 5 out of 5 stars

    It’s all I use

    By on

    I’ve used this spray for the last 10 years on my Giant Schnauzer. She used to come in from every hike with at least 1 tick. Since using this, the only time she’d gotten them is if I forget to spray her. I like the smell.

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  • 5 out of 5 stars

    Smells good and works!

    By on

    If you have a flea infestation this will not work, you need something more hardcore. We used this on our dogs when we took them hiking and it helped to keep the ticks and other bugs off of them. We also had some ants that were coming into the windows at the cabin we stayed at and this killed them. I have also used it to spray around the doors and windows at our house on the outside. The oils help it stay on and forms a barrier to help keep pesty bugs from coming inside.

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  • 5 out of 5 stars

    Visible Results

    By on

    I sprayed this Sentry flea spray on my little dog and saw dead fleas fall off of her. I am so impressed and my dog is finally sleeping in pease!

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  • 3 out of 5 stars

    Very strong smell

    By on

    We live in a dog friendly apartment building, so when we go out to potty, my dachshund, has been coming back in with fleas. I didnt want to bathe her everyday, so I bought this hoping it would repel the fleas.Perhaps Im not using it right because Im still finding fleas. The first time I put it on, she was waaaay too oily, so I bathed her and put some after her bath, not as much as before. Still finding fleas, she hates being sprayed, so I put it in my hands and rub it onto her. The smell is really strong, not bad, just strong. Reminds me of the holiday season because of the cloves.

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  • 5 out of 5 stars

    I use it on my dogs and on myself!

    By on

    A spray or two and then rub it into the dog's fur, under the chest, down the leg and to the feet to keep bugs away. I use it myself when I'm wearing shorts to keep mosquitoes from biting my ankles. Works great, non toxic, easy to use, inexpensive and smells good. What more can you ask?

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