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PetArmor® Plus Flea & Tick Topical for Cats - 1 / Over 1.5lbs

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How do I apply it correctly without getting it all over my cat’s fur?How soon after applying it can my cat get wet?Will this clear an existing flea problem, or does it only prevent new fleas?How often should I reapply it?My kitten weighs over 1.5 lb but is only 7 weeks old—can I use this yet?

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4.2 from 78,045 reviews

329K+ sold

PetArmor Plus Flea & Tick Topical for Cats — Waterproof, 1 Application (Cats Over 1.5 lb)

A cat-specific, waterproof topical that's a clear choice for indoor cats too. It kills fleas, flea eggs, larvae, ticks, and chewing lice—breaking the flea life cycle with the same active ingredients as FRONTLINE Plus, in a simple monthly application.

$6.03

Key Features

•

Cat-specific topical for cats over 1.5 lb — gentle, straightforward care

•

Waterproof formula kills fleas, flea eggs, larvae, ticks & chewing lice

•

Breaks the flea life cycle, not just adult fleas — helps prevent re-infestation

•

Same active ingredients as FRONTLINE Plus: fipronil and (S)-methoprene

•

One easy application delivers monthly protection, up to 30 days

Count

Weight

Over 1.5lbs

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Customer confidence

329K+ recently bought this product

Top seller

98.6% of customers keep this item

Low return rate

Over 329K+ happy customers

Name: PetArmor® Plus Flea & Tick Topical for Cats - 1 / Over 1.5lbs
Brand: PetArmor
SKU: Z102JRDQ7
Price: 6.03 USD
Availability: InStock
Rating: 4.16 (78045 reviews)

Fleas No More

PetArmor Plus Flea & Tick Spot Treatment works fantastic. The flea's stay off of my cats and they are not always chewing and scratching themself. The price is very reasonable and a fraction of the other name brands.

Sandra

Fleas Evicted, Cat Offended

Within a day or two, I stopped seeing fleas doing their little parkour routines across his fur. Scratching went down noticeably... It’s also actually waterproof... Still effective afterward, so points for that.

Verified buyer

Bought for my kitten

Within 6 hrs I was seeing fleas in various states of death. Less than 24 hrs later, my kitten is free of scratching, licking, and chewing on the pests.

Brandon

A tabby and white cat curled up resting in a soft window perch bed beside a sunny window with greenery outside

Made for indoor cats

Protection that fits a quieter life

Even indoor cats can encounter fleas and ticks carried in on shoes, bags, or other pets. PetArmor® Plus is a cat-specific topical made for cats over 1.5 lb, so low-exposure companions get straightforward, waterproof coverage. It's a calm, reassuring choice when you want prevention without a trip to the vet.

Transparent ingredients

The same actives you can look up

PetArmor® Plus contains fipronil and (S)-methoprene — the same active ingredients as FRONTLINE Plus for Cats — so you can compare with confidence and make an informed decision. The waterproof, fast-acting formula starts to kill fleas within 24 hours and keeps working for up to 30 days per dose.

Woman on a sofa smiles while gently petting an adult tabby cat resting on her lap in a sunlit living room

Woman kneels in a bright entryway setting down a bag while a tabby cat sits calmly on the rug by the front door

Breaks the flea cycle

Straightforward monthly care that lasts

Unlike treatments that only suppress adult fleas for a while, PetArmor® Plus kills fleas, flea eggs, flea larvae, ticks, and chewing lice — breaking the flea life cycle to help prevent re-infestation. One easy topical application protects your cat for a full month, with pack sizes to match your household.

Expert tested. Built for outdoorsy dogs.

Waterproof, cat-specific protection that breaks the flea life cycle

Advocacy

84%

Of customers have recommended us to a friend or family member.

Satisfaction

75%

Of customers gave us positive customer satisfaction scores.

How We Stack Up

PetArmor Plus

Adult-flea-only topicals

Flea collars

Kills flea eggs and larvae

Kills adult fleas

Covers ticks and chewing lice

Waterproof formula

Monthly topical application

Made for cats over 1.5 lb

A tabby and white cat lounges contentedly on a cozy cream blanket surrounded by soft pillows in warm sunlight

Thoughtful Protection for Indoor Cats

Even low-exposure indoor cats can pick up fleas carried in on shoes or other pets. This cat-specific topical gives straightforward monthly protection for cats over 1.5 lb.

Woman smiling gently while holding a calm adult tabby cat in her arms near a sunlit window

The Same Active Ingredients as FRONTLINE Plus

Formulated with fipronil and (S)-methoprene — the same active ingredients as FRONTLINE Plus for Cats — this waterproof formula starts to kill fleas within 24 hours. A transparent, informed choice.

Alert tabby cat perched atop a cat tree in a bright home office with plants and a window view

Breaks the Flea Life Cycle

Rather than only suppressing adult fleas, PetArmor Plus kills fleas, eggs, larvae, ticks, and chewing lice to help stop re-infestation. One waterproof application lasts up to 30 days.

Frequently Asked Questions

For indoor-cat owners who want straightforward, cat-specific protection, PetArmor® Plus Flea & Tick Topical is a clear choice. It's a waterproof topical for cats over 1.5 lb that kills fleas, eggs, larvae, ticks, and chewing lice, breaking the flea life cycle rather than only suppressing activity. Even indoor cats can pick up fleas on shoes or other pets, so prevention matters.

Woman sits smiling on the floor beside a couch while an adult tabby cat rests on a rug in a sunlit living room

Average 4.2 Star Rating

Over 64,000+ Positive Reviews

We've collected over 78,045 reviews from shoppers on our website and major retailers.

All

Price

Quality

Application

Ease of use

Rosi

Mar 9, 2024

Happy kitty happy Mum!

The media could not be loaded. After my son noticed tiny slithering bugs on our 9 month old tabby, I bathed him and tried other treatments that didn’t work. My son had noticed tiny slithering bugs on our cat Chivo, so we quickly treated him with Pet Armour Plus on February 4th. Since then, we haven't seen any more bugs, and Chivo can enjoy the outdoors without worry. Thanks, Pet Armour, for keeping our kitty healthy and bug-free!

Theresa Wauligman

Jun 21, 2025

Flea & Tick Drops That Actually Work! 🐾

🐱 5-Star Review: Effective Flea & Tick Drops That Actually Work! 🐾I’ve tried several flea and tick treatments for my cat, and these drops are by far the most effective. Within 24 hours of application, I noticed a huge difference—no more scratching, and I actually found dead fleas in her bedding. After a few days, she was completely flea-free and so much more comfortable.The application was simple—just part the fur between the shoulder blades and squeeze the drops on the skin. My cat tolerated it well, and there was no irritation or greasy residue. One dose has lasted the full month as promised.What I really appreciate is that it works without a strong chemical smell and doesn’t make my cat groggy or sick like some other brands have in the past. If you’re dealing with fleas or ticks, this treatment is fast, reliable, and safe for your furry friend. Highly recommend

Zoe Lampkin

Feb 8, 2025

Good price! My cats do fine.

I’ve been using PetArmor Plus for Cats for a while now, and it works great! It effectively keeps fleas and ticks off my cat, and I love that it’s waterproof and long-lasting. The application is easy, and I’ve noticed a big difference in my cat’s comfort. Definitely a cost-effective alternative to other leading brands. Highly recommend!

Lisa Putman

Sep 3, 2023

5.0 out of 5 stars These really do help with fleas

I have these on a monthly autoship so I won't forget to buy them as I have 7 cats to treat.I hadn't treated them in months and after the first application I did notice less scratching.I just applied the 2nd application yesterday. Haven't noticed any of them scratching today.The tubes are purple with a long neck. There's just a small amount of serum in the bottom and the long neck prevents spillage.I also find this brand a lot less expensive than others.

Just the facts

Nov 29, 2025

started working in days

First time trying this petarmor on my 7 pound cat. Got the one for over 1.5lb cats for him. He lives in a forest and been getting ticks once a week. A few days after the initial application he has been tick-free ever since. Been almost a month now. This stuff works perfectly for us. I highly endorse this product.

Mary New

May 26, 2026

Trusted vet quality flea care, works fast

Love this for my cats. It uses a trusted vet quality formula and comes with a 6 month supply, which is amazing. It protects against ticks and breaks the flea life cycle. It starts working within 24 hours and is super easy to apply. It kills fleas, eggs, and larvae. Easy to use, effective, and reasonably priced. Highly recommend to anyone dealing with fleas and ticks.

Apr 2, 2026

Fleas Evicted, Cat Offended

I used this on my cat, who weighs about 10 lbs and believes personal space is a human invention. Application was surprisingly easy—part the fur, squeeze, done. He gave me a look like I had betrayed him deeply, but that’s standard for anything that isn’t treats.The good news: it works. Within a day or two, I stopped seeing fleas doing their little parkour routines across his fur. Scratching went down noticeably, and I didn’t have to burn the house down, so that’s a win.It’s also actually waterproof, which I didn’t think I’d need until my cat decided to step in his water bowl like a tiny chaotic gremlin. Still effective afterward, so points for that.Now for the downsides: the smell is… not great. Not horrible, but definitely noticeable for a bit after application. Also, the application spot can look a little greasy for a day or two, so your cat may temporarily look like they lost a fight with a hair gel bottle.No bad reactions in my case, but as always, probably worth keeping an eye on your cat the first time you use it.Overall, solid, budget-friendly option that does the job—just be prepared for mild judgment and a brief period of “why is your neck like that?” aesthetics.

rmac

Feb 16, 2026

Tick protection works

Love how this protects my cat from ticks and fleas. The formula feels trusted and it really works. Very easy to apply too, which is a win with a kitten. My cat is around dogs a lot, and I want steady protection, and this delivers. I apply it every month and I've never seen a flea or tick on him. I will definitely keep using it.

Cecilia Gonzales

Jan 11, 2026

Great flea and tick prevention for cats

This product is really easy to apply, which is a big plus. I appreciate that it breaks the flea life cycle effectively and comes with a 6-month supply, saving me from frequent purchases. The waterproof feature is a bonus since it stays effective even if my cat gets wet. Overall, it fits my needs well and seems to do the job without any issues.

AW83

Dec 7, 2025

Best flea treatment!

I've been using this on my cat for a couple of years and haven't had any fleas! I live in an apartment building, so fleas are pretty common to find, but shockingly, none have gotten to him. I love that there's zero side effects and that it doesn't affect his mood or anything. The only issue I've had is him lightly/occasionally scratching where the medicine was applied on the first day. His skin doesn't look irritated or anything so he's probably trying to clean off the medicine.

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