Sentry Natural Defense Flea & Tick Squeeze-On for Dogs

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Sentry Natural Defense Natural Flea & Tick Squeeze-On for Dogs & Puppies kills fleas, ticks and mosquitoes for up to four weeks, yet it's safe to use on your dog or puppy and around your family when applied as directed. Each carton contains three monthly applications that feature natural active ingredients such as peppermint oil, cinnamon oil, lemon grass oil and thyme oil. Comes with 4 applications.

Key Benefits

  • Protect your pet, repels fleas, ticks, and mosquitoes
  • Works fast to kills fleas and ticks on contact
  • Made with natural ingredients so you feel safe using on your furry friend
  • Safe for uses around children and pets when used as directed
  • 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.

Active Ingredients

  • Peppermint Oil 3.00%
  • Cinnamon Oil 4.50%
  • Lemongrass Oil 4.50%
  • Clove Oil 5.00%
  • Thyme Oil 5.00%
  • Other Ingredients 78.00%

See all items by Sentry

  • Item Number
  • Brand
  • Breed Size
    Medium, Large, Giant
  • Lifestage
    Puppy, Adult


Remove product tube from package. Holding tube with notched end pointing up and away from the face and body, cut off the narrow end at the notches with scissors. While holding your dog with one hand, use the other to apply the solution. Invert the tube, and use the narrow end to part your dog's hair while gently squeezing to apply to the dog's skin. Hold the dog for a few seconds to give the solution time to be absorbed into the dog's coat. When finished, wrap the tube in paper and put into the trash.

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Customer Reviews

Sentry Natural Defense Flea & Tick Squeeze-On for Dogs is rated 3.5 out of 5 by 77.
Rated 5 out of 5 by from All Natural and it is 100% effective against fleas and ticks! I had previously purchased Sargeant's All Natural Flea and Tick and loved it. I bought enough to last me for our move out of state. When my supply started to get low, I looked high and low but could not locate the same product in state and in my former state. I contacted Sargeant's and they informed me it was now called Sentry. We checked the ingredients and sure enough it was the same product. Love, love, love that I do not have to put harmful chemicals on my beloved furry kid. The first few days it has a strong smell but after this period it settles down. More importantly, he has not had one tick and we have only spotted one flea. He is low to the ground and prior to using this medication he was a tick magnet. Couldn't be happier, cannot find this product in my local stores so I searched the web. Prices were the best at Chewy and the product arrived within a couple of days! Kudos on great customer service, price and product!
Date published: 2016-12-05
Rated 2 out of 5 by from Plenty K-9's to try this on I have 4 dogs that I used this medication on. Unfortunately it didn't work exact like I expected and didn't live up to my expectations as a dog owner and as a consumer. I did think it was working great up through the first couple of days. But after a full week had gone by. I began to realize that this product wasn't right for my family and our pets. When the week had elapsed, the fleas were as bad as they'd ever been.
Date published: 2017-01-09
Rated 5 out of 5 by from Great Alternative to Nasty Chemicals! My little wire haired Jack Russell/ dachshund mix kept on getting fleas this summer. My husband and I were giving her flea baths once or twice a week but even though the chemicals were harsh, it didn't really seem to be doing very much to help her. She was so uncomfortable day and night. I bought this product and my hubby and I put it between her shoulders (open a window because the essential oils are powerful! The smell does fade as the serum dries - just be patient). Within a couple days those persistent bugs were gone and her skin had calmed down. Now she's laying on my lap sleeping happily instead of scratching and biting! We definitely recommend this!
Date published: 2016-08-09
Rated 5 out of 5 by from Good Product for the Price I bought this item for my grandson who can't afford Flea and Tick for his 2 dogs. I'm hoping it will keep the dogs protected for 6 months.
Date published: 2016-12-16
Rated 3 out of 5 by from The Jury is still out..... I've been researching all natural flea and tick control for my 4 dogs and decided to try Natural Defense. I checked and none of the oils they use are bad or toxic to dogs but I still haven't made up my mind on it. I put a small drop on each dog to make sure they didn't have any reactions to it (which they didn't) and then sat back and waited to see how long it took for the really, really strong (almost overpowering but not unpleasant) smell of the natural oils to come down to a more bearable level. It took about 2 days and then it was just a light scent on their fur. Knowing how sensitive dogs noses are it made me wonder how the scent was impacting them and if it was causing them any nasal discomfort or headaches when first applied. If it was almost overpowering for me, what was it like for my dogs? The reviews I've read are good and it is much less expensive than Frontline and has the added benefit of being all natural but I think I'll do a little more homework before I make the switch. So the jury is still out on this one....
Date published: 2014-06-17
Rated 1 out of 5 by from Had bad reaction My blue heeler had a bad reaction from this product. I do like the smell but unfortunately won't work for us
Date published: 2016-11-19
Rated 5 out of 5 by from Great product! We live in the country and have 5 dogs. We use this product on all of them, 6 lb Chihuahuas to a 65 lb Boxer! It does have a strong clove smell when you first apply it, but the fleas and ticks hate it and we love that! It is all natural, so no harsh chemicals! Easy to apply and doesn't bother our dogs! Very reasonable price and very happy customers... and doggies!!! :)
Date published: 2016-06-18
Rated 5 out of 5 by from Kills Ticks I have a heavy infestation of deer ticks not only in the woods where my golden and greyhounds and I walk daily, but in my wooded fenced-in yard. After giving my golden a chemical burn with the poison I resorted to, I didn't know what to do as none of the other natural stuff seemed to work. Sentry Natural Defense DOES work. I have pulled dead deer ticks off my dogs and have had no problem with fleas. Won't use anything else. So glad to have found this product. It is strong smelling at first, but not unpleasant at all. Smell wears off in a few hours (probably after it dries). No need to use chemical poisions that DO absorb into their system when you can use this product.
Date published: 2014-10-16
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