PetArmor® Plus Flea & Tick Topical for Dogs - 1 / 5-22lbs

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4.2 from 98,798 reviews

573K+ sold

PetArmor® Plus Flea & Tick Topical for Dogs — 5–22 lb, 1 Dose

Name: PetArmor® Plus Flea & Tick Topical for Dogs - 1 / 5-22lbs
Brand: PetArmor
SKU: J13EDB0ZV
Price: 13.99 USD
Availability: InStock
Rating: 4.22 (98798 reviews)

New to flea and tick prevention? PetArmor® Plus keeps it simple — an easy monthly topical you choose by your dog's weight that starts killing fleas within 24 hours and delivers quality protection without the expense of a vet visit.

$13.99

Key Features

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Sized for small dogs 5–22 lb. Choose the dose based on your dog's current weight. For dogs outside this range, PetArmor® Plus also comes in 23–44 lb, 45–88 lb, and 89–132 lb doses.

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Kills fleas, ticks, and chewing lice.

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Contains fipronil and (S)-methoprene to target adult fleas and help break the flea life cycle by killing flea eggs and larvae.

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Contains the same active ingredients as FRONTLINE® Plus for Dogs, with no vet visit needed.

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Starts killing fleas within 24 hours, with up to 30 days of protection from a single application.

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Easy-to-apply waterproof spot-on topical. Apply according to the package directions.

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For dogs and puppies over 8 weeks old. Includes 1 dose for one monthly application, and is also available in 3-, 6-, and 12-dose packs.

Count

Weight

5-22lbs

23-44lbs

45-88lbs

89-132lbs

Free shipping on orders over $25

Delivers in 2-3 days

30-day free returns

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Customer confidence

573K+ recently bought this product

Top seller

81% of reviews are positive

High satisfaction

97.7% of customers keep this item

Low return rate

Over 573K+ happy customers

Easy Application for Ongoing Prevention

This flea and tick treatment is easy to apply and holds up well, even after baths. I’ve found it works as a proactive measure to keep fleas and ticks away. For regular prevention, it does the job and keeps my small dog comfortable.

Verified buyer

Impressive Inexpensive Flea Treatment

This product is efficient and easy-to-use. It breaks the flea cycle effectively while killing chewing lice, flea larvae, and flea eggs. It's a comprehensive solution to irritants on your pet. It kills just as good as Frontline, but at half the price!

Jerry R.

Fast-Acting, Effective, and Easy to Apply!

After applying it to my dog, I noticed that it worked quickly to kill fleas and ticks within hours, which brought immediate relief. It’s also waterproof, so even after bath time or a walk in the rain, I don’t have to worry about the treatment washing off.

Verified buyer

A woman holds a treatment box while gently parting her Labrador's fur between the shoulders.

New to flea prevention?

Protection that fits your dog's routine

If this is your first flea and tick treatment, PetArmor® Plus keeps it simple. You choose the pack by your dog's weight, part the fur between the shoulder blades, and apply the topical to the skin. One dose goes to work fast and keeps protecting for up to 30 days.

How it works

Stops fleas at every stage

Adult fleas are only part of the problem — their eggs and larvae keep an infestation going. PetArmor® Plus starts killing fleas within 24 hours and also targets flea eggs and larvae, breaking the flea life cycle so a few fleas don't turn into a household problem.

A beagle with four natural legs waits beside a man placing a dog-bed cover in a laundry basket.

A woman stores a sealed treatment box in a pet-care cubby as her German shepherd waits nearby.

Smart value

Quality protection, without the vet visit

PetArmor® Plus is made with fipronil and (S)-methoprene — the same active ingredients found in FRONTLINE® Plus for Dogs. It's an over-the-counter, spot-on option that delivers quality flea and tick control at an everyday price, so protecting your dog every month stays easy on your budget.

84%

Would recommend to a friend or family member¹

5 Million

Trusted by over 5 million pets annually²

Source: (1) Stackline, (2) Numerator Panel, data on file

How We Stack Up

PetArmor® Plus

Vet-prescribed flea treatments

Flea shampoos & sprays

No flea prevention

Keep fleas and ticks off your dog for up to 30 days

Kills flea eggs and larvae to break the cycle

Waterproof — keeps working after baths and swimming

Buy over the counter, no prescription needed

Choose the right dose by your dog's weight

Simple once-a-month application

A man and a blue Great Dane walk side by side along a sunlit woodland trail.

Nose-to-tail protection that lasts

One monthly dose kills fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days — full-body defense that starts working within 24 hours.

A seated owner gently parts a small schnauzer's fur between the shoulder blades.

Easy to choose, easy to apply

Pick your pack by your dog's weight, then apply the topical to the skin between the shoulders. Follow the product label and you're done — no pills, no wrestling, no guesswork.

A sealed treatment box rests with dog-walking gear while a corgi sits softly in the background.

Familiar formula, everyday price

Made with the same active ingredients as FRONTLINE® Plus for Dogs, PetArmor® Plus delivers quality flea and tick control over the counter — an easy monthly routine that's kind to your budget.

Frequently Asked Questions

PetArmor® Plus for Dogs kills adult fleas, flea eggs, flea larvae, ticks, chewing lice and prevents the development of flea pupae. It controls mites that may cause sarcoptic mange and kills deer ticks that can transmit Lyme disease. It also kills brown dog ticks, American dog ticks, and lone star ticks and prevents flea reinfestations for four weeks.

A woman and a large Newfoundland take an unhurried walk along a tree-lined neighborhood sidewalk.

4.2 Star Rating

Discover why customers choose us

We've collected over 98,798 reviews from shoppers on our website and major retailers.

All

Effectiveness

Value for money

Price

Quality

Katerin

Apr 21, 2026

Life saving keep your pets free of fleas

I have used this for about 10 years with my dog and 1. He’s still alive. 2. He has never had any of those symptoms that people say that it causes and 3. This product ALWAYS keeps fleas and ticks away! I haven’t seen those bugs for years thanks to this product. Now I am using it with my two new dogs and no issues no side effects! Just a healthy flea free doggie = happy dog!

Apr 18, 2026

It works and is safe for adult dogs!

I was extremely hesitant to use any flea med on my dogs (yorkie and cavapoo, both 3 yo), but we were getting overwhelmed by fleas. I tried catching them manually woth a bit of olive oil which suffocates them instantly, just going through my dogs’ fur. I’d catch10, 20 fleas this way at a time every other day. I got bites too. I finally gave this med a try. I first caught as many fleas as I could with oil, then gave the dogs a nice long bath, and the next day, once they were fully dry, I hesitantly used the med on both. No effect whatsoever in terms of side effects. They didn’t even notice me putting it on them, which I incorporated into a deceitful grooming/brushing session. After a week it two, i saw maybe 2-3 fleas, which is acceptable, but not a whole swarm. Great stuff, no side effects observed. Recommend!Update: ordered it again and received damaged product. All three tubes had cuts in them like deep punctures that were hot sealed. The were not leaking so maybe just a factory defect but still, medication is not something you want to take risks with.Update #2 I re-ordered and received another batch with damage. This is why I took off one star from my review. Two tubes are intact so are usable, but the third has the same puncture like mark. Weird and annoying!

Gulmira Heyl

Feb 20, 2026

Fast! Worth the money.

Omg, I am shocked how well this stuff works! We got two days ago a foster puppy, poor thing was covered in fleas. Overnight shipping, applied in the morning and by the evening she was clean! I almost went with cheaper stuff, but after seen her suffering, decided to buy this instead and I do not regret. Definitely recommend it. And I will keep purchasing for my all foster dogs amd puppy now!

Melody

Jun 19, 2025

Better than Seresto!!!!

So far, so good! I originally tried the Seresto Collar, but unfortunately, it gave my baby a chemical burn AND it only killed *some* fleas. Thankfully, I had purchased it from Chewy, and they were amazing—they refunded me right away. This is my first time using PetArmor Plus, and so far, it’s working well. YAY!!! Fingers crossed; this will be my go-to flea medicine for all my dogs if it proves worthy.

Iara weiman

Jun 13, 2025

It works!

I’ve been using this one on my two small dogs for over a year now, and it’s the only flea and tick treatment I trust. It’s easy to apply, doesn’t irritate her skin, and most importantly—it works. We live in an area with lots of ticks and critters, and since using this consistently, we haven’t had a single flea or tick issue.Each treatment lasts the full month, and I love the peace of mind knowing she’s protected even after playing outside or going on hikes. It dries quickly and doesn’t have a strong smell like some other brands I’ve tried.Definitely worth the price for the quality and effectiveness. If you have a small dog and want a proven product that does what it promises, this is it. I always keep a box on hand!

justin merolla

May 20, 2025

Works great. Save your money

Great price. No aparent health related side effects. We used it on a 70 lb female husky. Shes happy to not have to worry about lime disease anymore! Used for 4 months, consecutive. It worked just as well as the 60$/month/treatment stuff. In the sence that once applied. We never again found ticks or fleas on the dog. Or in the home. With either product.So save your money. Buy this. Look how satisfied this little lady is to be flea and tick free...

Brie Stoffel

May 8, 2025

It really works! No negative side effects

It really works. Ticks have been horrible this year in PA. I was so tired of spending money to see the vet to get the pill which costs so much. There were zero side effects. It quickly dried and did not get in any furniture. Four days after applying I found a dead tick on my dog. So grateful to find something that truly works and is reasonably priced that has zero side effects on my dog!!

Amazon Customer

Aug 26, 2024

Very effective against fleas

PetArmor has been a fantastic solution for my two dogs and cat! It’s fast-acting, waterproof, and provides reliable protection against fleas and ticks. I love that it comes with three doses, making it easy to keep all my pets safe and comfortable. Since using this product, we haven't had any issues with pests. Highly recommend for anyone looking for an effective flea and tick treatment!

Beach Berries

Aug 23, 2024

Love these

So this is my review about flea tick squirts for my dog. I am bothering to write a review because I actually like these a lot. Not only are they a good value but what makes them a good value is two things. One is that they work. I don't know how well they work on a flea infested animal because I don't let my pets get to that point. I don't think my dog even had fleas when I first tried this on her. The more I talk the more I sound like a bad pet owner and I am not. My dog used to take the pill for fleas and ticks and those are pretty expensive. So I thought I would give these a try after reading some reviews. Fortunately those reviews were true. My dog doesn't have any problem with fleas and it's been now about 4 months of using the product. The other thing I like about this product more than any similar that I've ever tried even the ones you pay a lot for at the vet which I have used as well is that it does not smell at all. I didn't smell anything and no I didn't have COVID. I could perhaps notice a slight but pleasant scent but seriously no real smell at all. And to me that is a huge win in addition to no bugs because I don't want my pet going around with some stinky stuff on her that makes her miserable and makes me not want to pet her either. So it's much much more of a pleasant experience to put these on my dog and be done with it because it's not stinky the dog doesn't run around like freaked out because you squirted it. I also got these for my cat and have basically the same result other than the fact that cats don't like anything squirted on them so there's that but there's no smell with the cat squirts either and the cat doesn't have fleas so yay!