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 85.
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 2 out of 5 by from Maybe only for colder seasons I liked that this was a very affordable alternative to chemical spot on. I decided to use this in the winter months living in the northeast. Little to no fleas in the winter so can't judge it based on that but I did find an engorged tick on him just 2 days before before the 4 week reapplication. I think this is an okay alternative in low tick areas. However, living in the northeast where Lyme disease abounds, maybe it's better to go for something stronger like Petarmour Plus or Frontline Plus. In the summer I alternated between frontline plus and sentry fiproguard plus and he had no fleas or ticks. I only tested the sentry natural defense in January and February. Fine for January. Found tick at the end of February.
Date published: 2017-03-04
Rated 1 out of 5 by from Didn't work Sadly, I just moved to an area that has fleas. One dog is ok, my other girl is having a horrid allergic reaction to them. I got this hoping to at least ease some of her sufferings and keep the fleas at bay. This product did nothing at all. There are just as many fleas's on my girls now then there were before I applied them. The smell was also an issue. Its extremely overwhelming and I actually had to sleep in a separate from my girls. One of the girls is a service dog, being separated from her is NEVER a good thing.
Date published: 2017-03-02
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 4 out of 5 by from Pretty good So the smell is a little strong but only because most of the solution is oils so it has to be to work. I applied it outside so it wasn't too strong of a smell for my dogs since they can smell a lot better then me. I wish it would dry faster so I'm not worried about it getting everywhere. Next time I will do it mid afternoon so they can chill outside until it dries.
Date published: 2017-03-24
Rated 2 out of 5 by from Smelled good. Doesn't work. I think it really smelled good and cannot understand what everyone's aversion was to it, however... We are in the midst of a VERY BAD flea season here this year and this product didn't help.
Date published: 2017-03-16
Rated 5 out of 5 by from Love This product is excellent I have used it for years and it has never let me down. I love the fact that it is natural and safe for my dogs. I also love the price. I have 4 extra large dogs.
Date published: 2017-03-12
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