Sentry Flea & Tick Shampoo With Oatmeal Review

Love Your Pets!

sentry flea and tick shampoo

Why not try Sentry Flea and Tick Shampoo with Oatmeal for Dogs and Puppies which is specifically formulated to kill fleas, their eggs and repel fleas.

Is your dog always scratching? Do you find that there are black dots that look like dirt on your dogs skin? Your dog may be suffering from fleas! Did you know some dogs (like mine) are allergic to fleas.

This could cause an allergic reaction that requires a trip to the vet! 

Let’s read on about Sentry Flea Shampoo and see if it is right for you and your dog.

Sentry flea and tick shampoo for dogs kills fleas, their eggs and ticks  for up to 10 days.   Safe to use on puppies 12 weeks and up.

It lathers well and doesn’t have a medicine type smell.  Instead, it smells like Hawaiian ginger.  It will leave your dogs coat soft and shiny while also deodorizing your dog or puppy.  The oatmeal soothes and calms the skin from the irritating bites, giving your dog relief from itching.  

Repeal and kill fleas and ticks with Sentry Flea Shampoo.

From calming products to flea shampoos to flea combs, Sentry has a ton of products to check out.

View their product line here: Sentry Pet Products


  • Comes with Oatmeal to Soothe irritated skin
  • Ph balanced for your pet
  • A little goes a long way for us frugal pet owners
  • Priced lower than other flea shampoos for dogs
  • Gentle and soothing on your pets skin
  • Cheaper online than in stores


  • Occasionally the container is not sealed properly before shipping and some product may leak out.
  • If your dog is allergic to gluten, wheat or grains, please note that this product contains oatmeal and you may not be able to use it.

Dog Flea Shampoo FAQs

How do you check a dog for fleas and ticks?

Check out the video below for help.

To search for evidence of fleas, check over your pets with your eyes and see if you can spot any fleas or flea dirt, which looks like black dots on your pets skin.  But really, it is flea poop (ew) made up of your pets blood.  If you rub the flea dirt on a piece of white paper towel it will streak red.  Also check the moist areas of your pets body, such as by the tail, eyes, head and ears to see if there is flea dirt or fleas.

Fleas and Your Dogs Health

A flea infestation in your dog’s fur is a serious condition that should be given special attention.

These parasitic creatures persistently feed on the blood of your pet and the resulting bites leave them irritated and itchy. Your dog, like mine, could even be allergic to the bites and scratch themselves raw!

The skin infections caused by flea bites may also result in anemia which is a serious condition. It’s a great idea to research the best flea and tick shampoos for dogs before deciding which one to use on your puppy or dog.

How do you prevent fleas on your dog?

sentry flea and tick shampoo reviewOnce you have confirmed that your pet has fleas, you would need to start to treat your pet and its environment such as carpets, bedding, furniture etc for fleas.  Pet owners ask how do I prevent fleas on my dog?  The best place to start with flea prevention is a good flea shampoo.

One of the best flea shampoos for dogs on the market is Sentry Flea and Tick Shampoo with Oatmeal for Dogs and Puppies. You can use it on dogs AND puppies (bonus) and this shampoo is made by a reputable company that maintains high standards of quality.

Can Flea Shampoo for Dogs be Used on Cats?

No.  Unless the product states on the bottle that it can be used on cats and dogs, then do not use it on your cat.  You will have to buy a product that is specially formulated for cats.

Ingredients such pyrethrins that are found in flea killing shampoo for dogs can seriously harm or even kill your cat.

sentry flea and tick shampoo for dogs

If you do not use a flea shampoo specifically made for cats, or flea products made for cats in general, they can make your cat very sick. This can cause your cat to experience nerve damage and even death.  You might also wonder if you can use a flea shampoo for cats on your dog?

The answer is the same: unless the product specifically says it is for BOTH cats and dogs, do not use it on your pooch.  It could seriously harm or even kill your dog.

Even then, we recommend reading the ingredients list to ensure that nothing in the flea shampoo could harm your cat or dog.  We review the Top 4 Proven Best flea shampoos for cats in our post here.

Does Sentry Flea and Tick Expire?

YES!  Using an expired dog shampoo may make your dogs skin problem worse and no one wants that.  Remember that dogs have more sensitive skin than humans, and any kind of negligence can harm their skin in a major way.  It is best to avoid any product that has passed its expiry date.

You must pay attention to the expiry date purchasing a dog flea shampoo. It’s important to make sure that the container has not been tampered with.  Also, double check the expiry date and make sure the date is far into the future.

Where is the expiration date on dog shampoo? Just like products made for humans, it should be printed and visible

  • on the bottom of the bottle
  • on the lid
  • on the side

How long is dog shampoo good for?  Well, the depends on the product.

A medicated shampoo for fleas and ticks or skin conditions, or an all natural shampoo without preservatives, may have a shorter expiry date than other commercial dog shampoos.

Keep your receipt!  This will come in handy if your dog reacts badly to the shampoo and you need to return it.

How to use Sentry Flea and Tick Shampoo

Sentry Flea and Tick shampoo with oatmeal is safe to use on your dogs and puppies, but you must follow the directions on the bottle.

  1. Lather for 5 minutes while massaging the product into your dogs coat and skin.
  2. Rinse your dog thoroughly to remove all of the shampoo and wash dead fleas down the drain
  3. Comb your dog with a flea comb to remove any left over dead fleas.

While this product works great at killing fleas currently on your dog and preventing them for 10 days, if you want a permanent solution, most likely you will have to use an extra method of flea prevention such as a topical treatment with the shampoo.


So, now that you know about the pros and cons of using Sentry Flea and Tick Shampoo, you can use it for any dogs and puppies that you have to kill and prevent future flea infestations in your home and on your pets.

Please do a spot check on your pets skin to ensure they are not allergic to the shampoo ingredients.  If your dog or puppy suffers from any type of irritation, stop using it, and consult a vet.

Have you tried Sentry Flea to get rid of your flea problem?  Did it work?  Do you have any tips or tricks to get rid of fleas fast?  Let us know in the comments below!  Sentry products not for you?  Check out our reviews of the best flea killing shampoos for dogs below!