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Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Under 18 lbs. | 8 Months Protection

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Size: 1 Pack


Color: Gray


Features

  • Vet-recommended, premium flea and tick protection for dogs and puppies without the price tag
  • Long-lasting flea and tick collar kills and repels fleas for 8 continuous months
  • Seresto is veterinarian recommended flea and tick collar
  • Starts working within 24 hours to kill and repel fleas by contact so pests dont have to bite your dog to die
  • Hassle-free, non-greasy, easy-to-use flea and tick protection

Description

Give your dog long-lasting protection against fleas and ticks with a Seresto Small Dog flea and tick collar. Unlike other flea and tick protection, Seresto Small Dog flea and tick collars kill and repel fleas and ticks for eight continuous months. Seresto Small Dog flea and tick collars are recommended by veterinarians, stocked by 8,000 vet clinics and have been trusted by pet owners for nearly a decade.Seresto Small Dog collars make your dog’s comfort a priority by killing fleas and ticks on contact, so pests don’t have to bite your dog to die. Existing fleas die within 24 hours after initial application of the collar. After 24 hours, any new fleas on the dog are killed within 2 hours with protection against further flea infestation lasting 8 months. The prevention of infestations with new ticks starts at 48 hours after application of the collar. 48 hours after application, any new ticks are repelled and/or killed in as quickly as 6 hours. Seresto Small Dog collars protect against common pests like deer ticks, American dog ticks, brown dog ticks, and Lone Star ticks; they’re also effective against chewing lice. Fleas and ticks not only cause discomfort; fleas can transmit bartonellosis or tapeworm. Ticks can transmit Borrelia burgdorferi which causes Lyme Disease. Check the product label for information on potential side effects.Seresto Small Dog flea and tick collars are for dogs at least 7 weeks old, and there’s no prescription needed. They’re odorless, non-greasy and water resistant to swimming, exposure to rain or sunlight, bathing, and shampoo treatment.Seresto is a trademark of Elanco or its affiliates.Elanco Animal Health, data on file Seresto Small Dog is water resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an eight-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and reduced to 7 months for tick control.Seresto is rigorously regulated worldwide with your pet in mind. Fake Seresto collars are ineffective and can put your furry friend at risk for expensive flea and tick infestations and painful flea and tick bites which can result in transmission of certain diseases. One of the best ways to make sure your Seresto collar is authentic is by making sure it’s “Sold By” one of our authorized sellers. Check out the trusted list before shopping: , Petco, Entirelypets, Petstoreusa, Pets Go Here - Pet Store, Heartland Veterinary Supply. Brand Story By Seresto P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Manufacturer Contact Information For any technical issues contact manufacture at See more

Brand: Seresto


Item Form: Collar


Scent: Unscented


Item Weight: 3.52 ounces


Active Ingredients: Imidacloprid, Flumethrin


Allergen Information: Allergen-Free


Dog Breed Size: Small


Age Range (Description): 7 weeks and older


UPC:


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.56 x 4.5 x 4.5 inches; 3.52 ounces


Manufacturer recommended age ‏ : ‎ 1 month and up


Item model number ‏ : ‎ 81857944


Department ‏ : ‎ Flea & Tick


Date First Available ‏ : ‎ January 28, 2013


Manufacturer ‏ : ‎ Elanco US Inc


Best Sellers Rank: #393 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Dog Flea Collars


#2 in Dog Flea Collars:


Item Weight: 3.52 ounces


Department: Flea & Tick


Manufacturer: Elanco US Inc


Item model number: 81857944


Date First Available: January 28, 2013


Item Package Dimensions L x W x H: 4.84 x 4.8 x 1.46 inches


Item Dimensions LxWxH: 1.56 x 4.5 x 4.5 inches


Brand Name: Seresto


Target Audience Keyword: dogs


Directions: How to apply the Seresto collar on your dog 1. Remove the collar from its packaging. 2. Unroll the collar and remove the small plastic connectors from inside the collar, ensuring that no remnants remain. 3. Insert the end of the collar through the buckle and loops. 4. Adjust the collar around your dog's neck until it fits comfortably on them. 5. Two fingers should fit beneath the collar and neck to ensure it's not too tight. Any excess length of the collar beyond an inch past the loops should be cut off, unless it is on a growing puppy, where some additional length may be needed for adjustment as the puppy grows. 6. Check periodically and adjust fit if necessary, especially on growing puppies.


Country of Origin: Germany


Warranty Description: don't eat


Model Name: 81857944


Color: Gray


Size: 1 Pack


Age Range Description: 7 weeks and older


Number of Items: 1


Style: 1 Pack (for dogs)


Breed Recommendation: Small


Included Components: collar


Specific Uses for Product: Parasites


Frequently asked questions

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Top Amazon Reviews


  • They killed the fleas within two days where the baths failed.
Size: 1 Pack Color: Gray
My dogs had fleas, first time ever, one is 9, the other is 5. Tried flea baths a few times, but wasn’t getting rid of them. Within 48 hours of wearing the Seresto collars, the fleas were gone! I have two Yorkies with long hair, so this was a life saver. The collars aren’t cheap, but I feel they’re worth the cost for 8 months of protection. ... show more
Reviewed in the United States on September 28, 2025 by Edward Traylor

  • Long-Lasting Protection for My Small Dog!
Size: 1 Pack Color: Gray
This Seresto collar is amazing! It’s easy to put on, adjustable, and provides up to 8 months of continuous flea and tick protection. My small dog (under 18 lbs) wears it comfortably, and I love that it doesn’t have a strong chemical smell. I’ve noticed a significant reduction in fleas and ticks since using it, and it gives me peace of mind knowing my dog is protected year-round. Highly recommend for small dogs and busy pet owners looking for effective, long-lasting prevention! ... show more
Reviewed in the United States on August 19, 2025 by Melissa

  • Excellent product; very effective.
Size: 1 Pack Color: Gray
The greatest and easiest way to keep the little critters from biting MY little critters. These are a wonderful invention. No more of that awful disgusting liquid on their necks that you inevitably soon after run your hand through when petting. That is so frustrating. I swear I forget immediately after putting it on them; definitely the dementia thing! LOL. Getting that smeared over your hand is a drag though. This Seresto is NOT. This is lovely stuff and works for about 9 months! Only drawback is the cost, but what isn’t expensive these days? Overall definitely worth it. No smell, no oily stuff to smear over things, no having to remember to give them something every month. Very effective. No side effects I’ve ever seen. I will happily keep paying for and using it on my dogs! ... show more
Reviewed in the United States on July 12, 2025 by D. Frank, FNP

  • Best flea prevention for my longhaired chihuahuas and pomeranian.
Size: 1 Pack Color: Gray
The only flea collar I've ever used, no harsh chemicals on dogs skin and they work great.no skin irritation, they dont scratch, very durable, and the excess i cut off i place in their doggie bed or in the vacuum canister
Reviewed in the United States on September 16, 2025 by B.V.

  • Depends on dog
Size: 2 Pack Color: Gray
Worked well with one of my dogs. But not the other.
Reviewed in the United States on September 28, 2025 by Mia Gill

  • It works but frequent baths may diminish potency
Size: 1 Pack Color: Gray
This is a review for Bayer Seresto dog collar for small dogs: This purchase was made a while back. I am only now entering my review because 1) time is an issue for me 2) I can now share with near certainty that the product works. First a little history: sometime last year we missed the 30th day dose of the Frontline that we were using then. Unfortunately those couple of days turned into an unwanted turning point. Within about a month we were seeing little crawly things on our sweet little pooch. In no time we had a major flea infestation in our home! We continued with the Frontline but were not seeing any results. So we did various non-flea bomb things: we went to great lengths to get rid of the fleas inside and outside the house, we bathed our dog frequently, we combed out the disgusting bugs on a daily basis, we got the Seresto collar and we stopped the Frontline and switched to Nexgard. Our problem went away in about 4-months. Long time right? Well, fleas can linger for a while so don’t think you can get rid of them so easily. You might think that our problem was resolved because of the Nexgard (which also works) but I think our problem was resolved because of both. Since our problem was so severe, at the recommendation of our vet, we bathed our dog a lot. Poor thing. The fleas really did a number on her skin and coat. The thing with Seresto is the directions call for infrequent baths. This, we found out, is because the chemical effect has to ‘restart’ each time after a bath. This is where the Nexgard came in as a backup or insurance. Our problem was extreme so the baths for our darling Cavalier were necessary – we used a special antiseptic shampoo that helped her skin and killed the fleas that were on her. (Of course, after a few hours back in the flea environment, they jumped on her again.) As we understand it the collar works by releasing an agent that coats the animal’s fur. This is what kills the fleas before they bite. So if you’re bathing your dog frequently, be aware that the collar’s strength will diminish and may not ‘work’ for a day or two following the bath. The collar may then need to be replaced more frequently too, because it is ‘using up' the chemical faster. Instead of every 8 months, it may be every 6 months. If all you need is maintenance then you should be alright. But if you’re battling a problem like we were, multiple approaches like ours may be necessary. On the flea infestation in our home, we researched every piece of information about getting rid of fleas and applied all that we learned. We talked with a number of customer service reps, wonderful all of them, both at Frontline and Bayer (the makers of Seresto) and even corresponded with a few of the world’s top vets and scientists in the field of flea management. Fighting home flea infestations is a task that requires a lot of work, time and persistence. Killing the adult fleas is not enough. One must make sure the pupae are also eradicated. This next to last life cycle of the flea is the one to fear. Pupae can remain dormant for up to 6-months, hiding in crevices and maturing into adult fleas, months after you’ve stopped fighting. The ideal is to do everything to get rid of the adult flea so that they do not lay more eggs. For us that was the collar and the Nexgard. Focusing on the pupae throughout is recommended too. Since they can linger in your home dormant, you want to stop them from growing into adulthood 6-months after you think you got rid of the problem. Once the pupae mature, they ‘wake’ up, sense the warmth of your pet, jump on your animal baby and start the cycle all over again. In the heat of the infestation, we would sprinkle and rub salt and diatomaceous earth in all the crevices and large swaths of the carpets. This would sit for a few days (yes, a bit problematic when walking over it but well worth it, I tell you.) and then vacuum well. We’d repeat this every 2-3 days for weeks. We’d also launder sheets, and doggie bed covers, and any fabric on which our dog would lie, in hot water, frequently. In order to gauge our progress, we set up a few desk lamps on the ground above aluminum dollar store food storage pans filled with soapy water. This way we could see if the fleas were dying off. Fleas get attracted to the warmth of the light, move toward it and of course they can jump as high as four inches so in they would go into the water. I guess the soap would kill them. Over time, the dead fleas in the soapy water diminished to the point that we knew we had won the battle. No dead fleas in the water meant no more adult fleas in the house or on our dog. With the continued vacuuming, I believe we got rid of the pupae as well. Of note, the vacuuming is also like an earthquake for the fleas and the pupae, stimulating them, making them jump all over the place, allowing them to be sucked up by the vacuum faster. So I say, among other things you can do to combat a bad flea infestation, vacuum, vacuum, vacuum, every 2-3 days if possible for a while, launder everything frequently in hot water, place salt and/or diatomaceous earth in the crevices, use the soapy water pan idea and keep your animal away from shady areas in your backyard because fleas love to live there. They won’t be in the sunnier parts. (We used inexpensive garden wire mesh.) Oh and be careful vacuuming the diatomaceous earth because this could ruin your machine. I used to go easy on the powder. You don’t need a lot. And if you have a bag vacuum, get rid of the bag each time because if you leave it sitting there, the pupae and fleas can get out of the bag and return to your dog. We have a Rainbow vacuum which uses water so dumping the water was much easier than changing a bag each time. Anyway this was my family’s experience with fleas and the Seresto collar. We continued with both collar and Nexgard for a while and never saw a flea again. The Nexgard by itself could’ve been ok but I truly believe in the collar since it is not at all like the traditional dangerous collars of old that are still being sold today. I think if we had had the Seresto from the beginning, we would not have suffered as we did. It’s also so simple. Put the collar on and forget about it for 8 months! Now I will never go back to drops flea control. I hope some of this is helpful. When we were going through our flea trauma I relied so heavily on these types of reviews that I wanted to “pay it forward.” Good luck to you. ... show more
Reviewed in the United States on June 18, 2016 by EA3776

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