Seresto Flea & Tick Collar for Cats & Dogs | On Sale | EntirelyPets Rx
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Seresto Flea & Tick Collar for Cats & Dogs

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  • Description
  • Ingredients
  • Reviews

Description

The Seresto Collar is Bayer's newest product for safely and effectively protecting your pets from fleas and ticks.

Seresto Flea and Tick Collar provides the performance you expect from a flea and tick topical in an easy-to-use collar that provides continuous protection against fleas and ticks for eight months. With Seresto®, pet owners have an effective and affordable option for flea and tick control in an easy-to-use eight-month collar.

Seresto combines two active ingredients, imidacloprid and flumethrin, providing dual action against fleas and ticks. Bayer's sustained release technology provides continuous protection over 8 months.

The benefits of Seresto include:
  • Kills fleas and continues to prevent infestations for 8 months
  • REPELS and KILLS ticks - if a tick is repelled, it cannot attach. If a tick doesn't attach, it can't transmit the organisms that may cause disease
  • Convenient and easy-to-use: one application lasts for 8 months. Just set it and forget it!
  • Odorless and durable construction
  • Available for both cats and dogs

Ingredients

Active Ingredients % By Weight
Flumethrin* 4.5%
Imidacloprid 10.0%
Other Ingredients 85.5%
*Trans Z-1/trans Z-2 ratio: max 66% trans Z-1 and min 34% trans Z-2

Reviews

Review Summary
4.7
64 Reviews
5
84% (54)
4
9% (6)
3
2% (1)
2
2% (1)
1
3% (2)
92% Recommend this product (59 of 64 responses)
By nanci s.
Maine
Always works!
April 7, 2025
We have been using these for several years and have been pleased with the results.
By Eric
Harrisburg, PA
Reliable
April 5, 2025
The Seresto collars are a proven reliable product to help keep fleas and ticks off my dogs. Entirely pet Pharmacy was able to fulfill my three pack need at a very reasonable price
Pros
  • Quick shipping yearly renewal discount and new user discount
Cons
  • Currently no cons but my dogs have not used this product before. It was recommended to me by my sister-in-law who uses it for her three dogs.
By John
California
Quality product
April 5, 2025
Seresto flea and tick prevention collars are a great product. They keep fleas and ticks off my pets for a full 8 months. This is money well spent.
Pros
  • Price
  • Effectiveness
  • easy to use
Cons
  • None
By Krista
PA.
Very pleased with Seresto Collar purchase
March 10, 2025
Happy with the website purchase of the Seresto Collars! Great price, too!
By M W.
Florida
Seresto collars thru entirely pets are wonderful
March 10, 2025
I ordered seresto coller for my dog. This was the best investment I have bought that works. Entirely was fast and reasonable prices. I would recommend them to everyone for sure. Thank you so much .
By Wolfson
Florida
Im so glad that I ordered this product. It really works.
March 10, 2025
Thank you entirely pet .for the fast wonderful service that you provided to me. I was extremely pleased with the fee's on sereto collars. I was extremely happy with the fast accuracy of my order. Thank you so much for making this customer happy and his pets.
By Donna
Martinsburg WV
Just as promised
January 8, 2025
This was the best price that I could find on the web. I figured that I was probably getting a knock off brand or there was a catch, NOPE! Fast shipping and the genuine product
Pros
  • Great price
Cons
  • None
By Mark
Irvington, AL
They work, but not for 8 months
January 1, 2025
Live in the deep south, and fleas are horrendous. Not a fan of flea pills, so do all other routes. The collars help for about 3-4 months, and then the fleas will take over.
Pros
  • Start working within a few hours
Cons
  • Only work for 3-4 months
By Weller S.
Deland
Great Price, Quick Delivery
December 7, 2024
Great price and was delivered very fast🙌
By Pamela D.
ME
This collar works
November 28, 2024
I've never believed in putting a collar on my cats. I moved to a very rural area and let my cats go outside. I found out quickly that Frontline was not doing its job. My vet recommended Seresto. the collar lasts well into 5 months, the 6th month is iffy. No fleas, not ticks. I like that I'm not sticking a dose of chemicals on my cat's fur. This seems like a healthy solution and it WORKS.
By Trina B.
University Place, WA
Saved my cats lives!
October 17, 2024
I’ve had INDOOR cats (as I do not believe in cats or dogs only outside…if you won’t leave your toddler outside unattended you should not leave your fur babies either) my whole life. Never have I ever had an issue w/fleas as I don’t wear shoes inside but this year in Tacoma, WA it has been crazy and NOTHING worked not even Vet scripts! My sweet Dr. Bubble Gupples my beautiful Tortie who just turned 8 was somehow infested and scratched and ate herself alive. I was devastated and spent hundreds and hundreds of dollars. I even advantaged bombed my apt and washed every single cloth item in HOT water and Nothing! I’m not a collar cat mom I use a harness and or my double cat stroller, that said I went on a limb and tried the Sestro collar and prayed this would work as I was out of money at this point but yet my 2 cats come before myself and my 7yr old son lol. Within 48 hours if that, ans I would NEVER give false testimony nor am I getting anything free or discounted (although that would be great haha)This flea and tick collar is hands down the BEST! She’s no longer itching, scratching, biting, growling, etc…she’s no longer miserable! She’s HAPPY! It’s like I won the lottery! She finally comes back in the kitchen to get her wet food twice a day as they have dry 24/7 and cookies on demand plus “soup” at lunch lol…oh thank you so much SESTRO because apparently they became immune to Advantage 2 (9+lbs) and I was going crazy! My two beauties are so happy and I owe my life and gratitude to you.
Pros
  • Got rid of fleas and eggs within 48 hrs
  • Cat was no longer in distress
Cons
  • Honestly, I can
By John C.
Texas
Seresto collars
September 10, 2024
Bought these for our 3 dogs and so far they seem to be working good. Bought some cheaper ones that turned out to be replica's and didn't work good at all. So trying this company to see how there quality is compared to some others. Time will tell.
By Brian
NC
Seresto
August 10, 2024
Been using this for about 20 years and like the ease of use and the reliability.
Pros
  • Ease
Cons
  • Cost
By Susan
New Hampshire
Great deal when buying three!
April 7, 2024
I have 3 big dogs, and it gets very expensive to buy them these collars. Happy to find a great deal on multiples. Have used these collars for several years now, and they keep my dogs and my home flea free.
By Jessica I.
Florida
The best flea collar
April 1, 2024
I never see fleas on my dog for 8 months with this collar on. They can be in a yard tht hasn't been sprayed and still walk in the house with no fleas. I highly recommend this collar.
By Westie M.
florida
Seresto collars
January 24, 2024
have used these for many years and I find them exceptional at keeping fleas and ticks off my dogs. Extremely happy with them and not one day goes by that my dogs have them on as I live in Florida
Pros
  • very good at keeping off those fleas and ticks
Cons
  • none
By KQ
Covington, GA
Great product
January 19, 2024
The collars are easy to use and last a long time. Great for flea and tick protection.
By Lily
Maine
better than the tubes
September 21, 2023
I love seresto collars! They last 8 months and there's no residue for my cats to clean off of each other. I use them for my indoor/harness walking cats. Not sure if I would recommend them for outdoor cats, as they don't breakaway easily and could trap your cat somewhere. Entirely pets had an amazing labor day sale so I got a 2 pack for $100! Came in a timely manner too
Pros
  • Long lasting, residue free, safer than other flea collars
Cons
  • Doesn't break off, may need two people to put on
By Liane
Groton NY
Great collars
August 4, 2023
Everything was exactly as we ordered and well worth the price for the collars it's the best deal I could get
By Ashley
Lancaster, PA
Works great for my barn cats.
July 11, 2023
My barn cats constantly had ticks on their faces (the only part of their body they couldn't remove the ticks from themselvs). Within 1-2 days of putting the collars on, bam! No more ticks. Haven't seen one on them in 2 months now. Will def purchase again.
By Steve Y.
Pensacola, FL
Great Service!
January 26, 2023
Living in the South with six rescue cats is not easy or cheap. The Seresto flea collars are a godsend to us, (We live near a swampy area.) Last year, I researched until I found the most cost effective solution to the problem of buying 6 Seresto collars every 8 months. EntirelyPets was my solution. At the time I made my purchase, I signed up for a "subscription" so the process would take place automatically next time. And just like clockwork, there were my six collars! It was and is a great service!

Merchant Response:Hello Steve, That is great to hear! Autoships are a great solution for those who want the product long-term but don't want the hassle of placing a new order every time. Sincerely, EntirelyPets Pharmacy
By Rich
Hawaii
Flea-free!
July 21, 2022
Flea at last! Flea at last! Thank God, I'm flea at last! - Catlin Luther CatSeriously though, Seresto does work as advertised. Just slap on a collar and no fleas for at least 7 months for my three furballs. One is a pure outdoor cat, one is a 75% indoor/25% outdoor cat and the other is purely indoors. Haven't seen a single flea since using it from last December.
Pros
  • Works even if kitty gets slightly wet.
Cons
  • reflectors can be difficult to mount.
By Glenda R.
Canfield, Ohio
Simple easy way to.protect your dog from pests.
April 30, 2022
I love the way these collars work so well and they are super easy to use. Entirely Pets always has the best prices and great fast shipping and service.
Pros
  • Works very well, easy to use
Cons
  • On the expensive side in a multi dog household like mine.
By LS
Massachusetts
Safe from ticks
April 27, 2022
In general I hate using chemicals, but this product works to protect them from any devastating tick borne diseases. I believe the positives outweigh the negatives.

Merchant Response:LS, we feel the same way. Lime disease is no joke and biting fleas are no fun! Take care
By Hilary
Tennessee
Most Economical & Highly Effective
April 24, 2022
We have had multiple dogs for several years and have used the Seresto collars on both our large and small dogs. The collars are easy to use, don't make a mess, and have kept both fleas and ticks off of our dogs and out of our home. (We live in the South, so fleas and ticks are a big concern for us.) It's great to only have to purchase one collar for each dog and have it last for the duration of the time when the fleas and ticks are a problem. (Note: We do not let the dogs swim in the collars and we remove them when they are bathed, so not sure if they would be as effective for as long if the dogs kept them on in the water.) We will definitely continue to purchase and use the Seresto collars!
By Dorenda H.
Marydel, Md.
Best Collar for my Cats
April 12, 2022
Like that I can buy a three pack since I have three cats. This collar works best for my cats since they go in and out. This is my second order from here and I love the prompt service. I will continue to use this company because these are the real deal, not fake collars like I got from a different place. I highly recommend this company..
By Linda M.
Westfield, North Carolina
Collars
January 26, 2022
These collars are the best. The first time I ordered them it was from here. Our dogs had fleas bad. The fleas would hop on me. I didn't expect that the collars would get rid of them in house but did. They are great.
By Bailey
Westchester County, NY
Great protection & so convenient!
November 28, 2021
I opted to start using Seresto collars for all my pups because of the risk of seizures reported for some monthly preventives taken by mouth (this risk was said to be only for some dogs who might be susceptible). At any rate, I’ve been pleased with these collars, which are convenient to use (I change them every 6-8 months as per the manufacturer’s recommendations) and very well-priced, even a bit less expensive than the monthly pills I used to give them! Thanks for offering this convenient bundle at an excellent price just when my pups needed them.
Pros
  • 1. Convenient and easy to use!
  • 2. Prevents forgetting to give monthly preventives by mouth
  • 3. Avoids having to give pet something by mouth that may be toxic for some dogs while providing equivalent protection as the usual oral meds
  • 4. Store new ones at room temperature in sealed can til needed
  • 5. Have reflectors on them which are easy to see in the dark
Cons
  • 1. Must remember to change collar as per manufacturer?s instructions
  • 2. Like any product, side-effects have been reported (though very uncommon), so dog parents should consider these when selecting to use the collar (risk-benefit ratio as compared to meds by mouth).
By Arianna T.
OH
My dogs are covered with fleas
July 13, 2021
I bought three Seresto collars for my 3 small dogs on May 15, 2021. I put the collars on the dogs as soon as they arrived. I haven't ever removed the collars. They haven't been bathed, they haven't swam and the collars are snug but not choking them. It's July 13th, 2021 and all 3 dogs have fleas. I've spent the last two evenings trying to comb out as many fleas as possible hoping this will help but honestly I'm just SUPER disappointed in this product.
By GaryC
CT
Tick and Flea control
May 30, 2021
Seresto is the only proven winner against ticks for my dog whom often wonders into the woods, i tried other products as well as all natural without success .This product also lasts effective for several months which makes my dog save until the winter.
Pros
  • ease of use, no smell, very effective
Cons
  • Some of the uncommon side effects that ate are possible.

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