Seresto Flea Collars For Tiny Cats And Kittens • A Review

Buying a flea treatment sucks.

If you’re purchasing a flea treatment, you already know it’s not a pleasant experience—your pet is likely suffering.  What does one do?  Run up to your supermarket’s “pet” isle and grab something for $9.99?  The truth is, cheap brands like Hartz are literally poison on rubber, and no pet owner alive should ever subject their animals to these products. This can be confirmed with a Google search for “hartz flea collar poison”.

The flea collar I’m talking about today is also widely counterfeited and sold on websites like Amazon, which I will mention closer to the end of the post. Buy all of your pet’s products from a trusted source.

So, what does one do?

The answer is simple.  If you have the means, and availability, you need to first contact your Veterinary professional. I am not a Veterinarian and my information will be provided as opinion only and should not be treated as medical knowledge.  I hope this satisfies all the Facebookers who read my last post, Are Temptations Treats Bad For Cats Or Are They Actually Safe?, and got angry with me for posting without being a Veterinarian.

Fleas - Little Bastards

Little Bastards.

What if you can’t pay for a Vet but still need help?

I’m very fortunate that I’m able to treat my cat’s health whenever necessary. However, in this case I called my Vet for a recommendation because I try to limit “the vet smell” to emergencies only. Plus, because of COVID, most Vet clinics require you to drop your pet off with them, and I just decided it was best to keep my kitty at home now.

Call a Vet, call a Vet, call a Vet. Okay, disclaimer done.

Tell your story!

I have an adorable, tiny, five Pound Maine Coon (yes, that’s her Facebook page).  She is five years old, enjoys a 100% wet food & bottled water diet, and sleeps closer to me than my wife if that’s possible. She’s a sweet, gentle indoor cat who was born feral and raised for the first four months by her feral mom. After that, I took over. Being the smallest cat in the litter but with the most personality hit my heart in the softest of spots — I had to have her.


My girl, Vicious, in July 2022.

The day I brought her home, I held her belly-up in the crook of my arm, stroked her cheek, and promised that I’d never let anything happen to her, and I meant it. I wanted so much for her to unlearn her mom’s feral training and become a loving, trusted, equal member of the family. It took a lot of hard work, but here we are—five years later—and she’s everything I hoped for and more! I’ve been chosen. She’s my owner.

An interesting set of bumps…

While scratching Vicious’ head in mid-July, I felt two small pimples behind her right ear. I knew exactly what they were based on their feel — when I got a closer look with a magnifying glass my heart sunk. Fleas. And because she’s an indoor cat, I knew my wife or I had to have brought them in somehow. The little bastards were about to start a war — a war I intended to win.

The problem was, I had no arsenal. In the past, all brands of flea drops have made her foam at the mouth, sick to her stomach, and the smell was so strong she’d hide in her litter box. Think about that, she thought her litter box smelled better than the flea drops and over-the-counter collars.

Not only that, she’s only five pounds. All of the side effects were worse because of her smaller size. I decided to clean her off with blue Dawn soap and warm water, knowing the soap to be safe for animal use.  This was a great, but temporary measure. The fleas were back by the weekend.

By this point my cat was scratching so much, her meows came with a howl if she scratched the wrong place.

She’s getting worse!

I called one of two Vet clinics I trust for their opinions on flea treatment products. One clinic required an appointment, the other recommended CAPSTAR Chewable Flea & Tick Medicine for Cats. I visited my local Petco, and saw the CAPSTAR product at a price tag of $49.99.  While in line, however, I read the box closer. CAPSTAR only works for 24 hours at a time. That would only give me six days to get the fleas off of Vicious and kill them around the house. Not going to work.

Seresto Flea Collar - Cat

Seresto Flea Collar for Cats — original (non-counterfeit) packaging.

Enter the Seresto Flea Collar for Cats. Located on the top shelf of the Flea Control isle, it’s price tag is $84.95. Today being my lucky day, though, I saw it was on sale for $64.95. “This wasn’t one of the Vet suggestions, though I’ve read on Facebook that they really work.” With a mighty inhale, I traded out my CAPSTAR products for the Seresto cat collar, made my purchase, and was on my way.

Eight months of protection is awesome!

If true, the Soresto collar will last eight months.  I will update this post every month (or two — engineers get busy!) with results, if they’ve changed.

Formulated With Two Active Ingredients.

The Seresto Flea Collar for Cats works with the help of two active ingredients: imidacloprid and flumethrin. While the latter is almost exclusively used on pets and livestock, imidacloprid is also quite common in pesticides used on vegetables, flowers, and trees.

Imidacloprid targets the nervous systems of invertebrates, such as fleas and ticks, causing damage and eventual death. Flumethrin works much the same way, impeding normal nerve function in fleas, ticks, and lice. However, the presence of this chemical also deters ticks from climbing into your pup’s coat when out on a walk, playing, or hunting.

Because of the way these chemicals are distributed throughout the natural oils in your cat’s coat, fleas and other pests come into contact with them almost instantly — no biting required.

Odorless, greaseless.

I was especially pleased about this.

How did it work?


My girl, Vicious, just 2.5 hours after putting on her Seresto Flea Collar

It’s 80 degrees here in Portland, OR as I write this (Aug. 17, 2022) and Vicious, has been asleep at my side for the past 4 days.  She’s barely moved.  I’ve been bringing all of her food to her, she’s pooped once, and peed twice. That’s it. I put the collar on Vicious’ neck — no drool.  I waited another 10 minutes — no foaming at the mouth.  Twenty minutes — she was in a great mood but still scratching. It took exactly two and a half hours, but she finally stopped scratching and fell asleep sitting up.  After she fell over, she joined me on the couch, and that’s where she’s been ever since. No scratching. No biting. No wailing. Just licking and purring.  She’s finally and completely relieved.  I have not seen one flea on her since we put the collar on.

Whether I pay $65 or $90, this collar seems completely worth the money and seems to be the one flea collar that’s strong enough to work, but gentle enough for my tiny little kitty.

I do not know if this collar is safe for kittens.  Usage is generally determined by the weight of the cat (or dog).

Counterfeit Seresto Flea Collars:

I mentioned that the Seresto collars bought online are very often counterfeit, and highly poisonous if not deadly. They are often sold on Amazon or eBay.  Please purchase your Soresto flea collars from only reputable online providers, or visit your neighborhood pet store, like Petco or PetSmart.

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