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Pet Armor vs Frontline For Dogs

Pet Armor vs Frontline For Dogs

When it comes to your dog’s health, the most common concern is flea or tick invasion. No matter how much our little ones are bathed kept clean, fleas and ticks still have a nasty habit of making their way to our canines.

With so many products in the market claiming that it kills ticks and fleas, pet parents must do their due diligence in researching those products to find the one that is most consistent, safe, approved by veterinarians and approved by the Federal Drug Administration (FDA).

Most flea & tick medications can be sold over the counter while others require a prescription from your canine’s veterinarian. However, although buying these over the counter brands seem a great idea, you should seek the advice of a vet prior to administering it to your little one.

There are a plethora of ways to protect your pet from ticks and fleas. PetArmor Plus and Frontline are two of the most popular over the counter flea and tick preventative medications. In addition, both brands sell shampoos, sprays, tablets, and topical for dogs.

Main Differences Between PetArmor Plus vs FrontLine Plus

The main differences between Pet Armor vs FrontLine Plus are:

  • PetArmor Plus is a budget-friendly flea and tick control solution, whereas FrontLine is a more expensive option.
  • PetArmor Plus uses the same active ingredients, whereas FrontLine Plus uses safer inactive ingredients.
  • PetArmor Plus has more consumer complaints and negative effects, whereas FrontLine Plus is higher rated with fewer side effects.


PetAmor Plus’ protection guarantee statement: “We guarantee Pet Armor clean and tick products will kill adult fleas, ticks, and chewing lice.”

PetArmor Plus promises to work with authorized sellers in order to provide exceptional service and enforce the integrity of their product. Their topical and medications are guaranteed to work fast and are easy to use. Their vet-quality formula starts killing off fleas, ticks, and larvae within 24 hours after it’s applied. Sometimes, however, it will take up to 48 hours for full results.

PetArmor Ingredients


The main active ingredients of PetArmor Plus are fipronil and methoprene. Fipronil, an Environmental Protection Agency (EPA) approved insecticide that destroys the central nervous systems of insects. When fleas, ticks or lice come in contact with this insecticide, their nervous system is paralyzed. This results in their death and the break up of the flea cycle by killing their larvae and eggs.

The USEPA has determined fipronil to be safe for use on dogs and carts, with no harm to humans who hand these products.

Science Direct

In addition, PetArmor Plus controls mites and ticks preventing mange and Lyme disease.

When to Apply PetArmor

You can start treating your dog with Pet Armor when your canine is eight weeks or older. The medication is distributed according to a dog’s weight. After your vet has approved Pet Armor for your dog, he or she will determine the dose. Once administered, the medication remains active in your dog’s body for 30 days. It becomes waterproof 24 hours after it’s applied.

How to Apply PetArmor

Apply the topical solution PetArmor Plus between your dog’s shoulder blades. Begin by separating your canine’s fur and squeezing the solution onto your dog’s skin. Make sure to avoid any contact with the area treated until it dries.

Frontline Plus

frontline plus for dogs

Frontline is also sold over the counter at many consumer stores. Prior to 2008, Frontline was sold only via the prescription of a veterinarian. Because of the latter, Frontline has been one of the leading flea and tick preventative brands for over 20 years.

Frontline Plus Ingredients

Frontline Plus’ active formula is fipronil which kills flea, ticks, lice, and mites. It also uses Methoprene to destroy flea eggs and larvae.

When to Apply Frontline

Frontline Plus must be applied to puppies eight weeks or older in order to eradicate even the flea eggs and larvae.  The medication is distributed according to a dog’s weight. After your vet has approved PeArmor for your dog, he/she will determine the correct dose. Once administered, the dose lasts 30 days after it’s applied and it becomes waterproof 24 hours after it has been applied.

How to Apply Frontline

Apply Frontline Plus topical solution between your dog’s shoulder blades. Begin by separating your canine’s fur and squeezing the solution onto your dog’s skin. Avoid any contact with the area treated until it dries.

Major Comparisons Between Frontline Plus and PetArmor

Upon researching PetArmor vs Frontline Plus, I found Frontline Plus to have the highest recommendation. According to, Frontline Plus has the least customer complaints compared to other products including PetArmor Plus. The biggest concern some customers have had is that fleas have become resistant to the drug and others claimed that some dogs have had negative reactions to the medication.

There is truth to this concern. Harley used Frontline Plus since she was a pup. However, when she turned 12 Frontline no longer worked for her. Those nasty fleas came back within a week, so her vet prescribed a different medication.

Pet Armor, on the other hand, has many negative reviews.

Pet Armor is considered a generic knock-off of Frontline that sells at a cheaper consumer price. Although PetArmor Plus claims to use the same active ingredients (fipronil and methoprene) as Frontline, scientists found that the inactive ingredients were not. It has a 50-60% customer dissatisfaction rate from many online outlets across the country.

More importantly, FidoPharm, Inc., Pet Armor’s manufacturer, was sued in a class-action lawsuit by customers that complaint PeArmor caused severe injury to their pets immediately after applying their product.

Based on the aforementioned, between PetArmor vs Frontline Plus, the Frontline seems to be the better product.

Signs of Irritation & Adverse Reactions

Imagine a paper cut or acid burn on your skin – the red, inflamed bump that swells up. That is how your dog looks and feels when allergic or if they’re having a bad reaction to the medication.

Signs of irritation and or adverse reactions to some ingredients include but are not limited to red spots, flaky skin, and red burnt skin that causes your dog to desperately scratch for relief. Some canines hopelessly run and rub the applied area on any surface. It is not a pretty sight and very frightening because your dog will also begin to cry.

Before you apply any flea or tick medication for your best friend,  ensure that the ingredients in the medication are not harmful to your dog. Sick and aged canines have compromised immune systems, so they may not be able to take the drug.  Therefore, I recommend you check with your canine’s vet first prior to applying the topical and/or oral solution.

Whichever product you chose for your little one, it is imperative that you remember to wait 30 days before applying the topical solution or oral medication as well. Most cases of topical insecticide poisoning are caused by a dog parent’s negligence of overdosing their pet.

Keep in mind that some dogs are extremely allergic or have horrid reactions to Frontline and PetArmor Plus.  So, it’s important to keep an eye out for any signs of irritation after administering these drugs. By doing so, you’ll have the best interest of your furry best friend and their trust.

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