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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


Features

  • Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
  • Long-lasting flea and tick collar kills & repels fleas for 8 continuous months
  • Seresto is the #1 veterinarian recommended flea & tick collar*
  • Starts working within 24 hours to kill & repel fleas by contact so pests dont have to bite your dog to die
  • Hassle-free, non-greasy, easy-to-use flea & 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: 0.22 Pounds


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: #392 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


Item Weight: 0.22 Pounds


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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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Excellent product; very effective.
Size: 1 Pack
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

  • The best tick prevention!
Size: 1 Pack
There is no other flea and tick prevention that works better than this collar! A new vet suggested I use an oral 4 in one prevention. My recently deceased dog always used this collar because he would not take anything orally and I did not want the hassle every month. Since my new dog has no issues I tried the 4 in 1. Firstly, a 6 month treatment cost me just under $200. I found that while it kills the ticks and fleas, it doesn’t prevent them from jumping on him. He came in from a walk several times with a tick crawling on him. The final straw was when I had an engorged tick stuck to my neck! I ended up buying this collar and not 1 tick on him since! I will always use this collar even with the 4 in 1! ... show more
Reviewed in the United States on July 7, 2025 by Mich H

  • Glad with my purchase
Size: 1 Pack
I waited 2 months to see if these collars would work, I purchased 3 dog and 1 cat collars (all different sizes) and they work perfectly. We were suffering every single year with fleas, I tried everything and nothing worked, until my dog groomer recommended this brand. Collars are expensive? Yes, they are a little expensive but worth the money, they last for 8 months and they really work, also works against ticks & Lice ... show more
Reviewed in the United States on July 1, 2025 by Ana M

  • Worked on 7lb Papillon when Advantix drops did nothing
Size: 1 Pack
I have always used K9 Advantix on my dogs, and never had problems until the year I started camping in Northern Wisconsin. Now, let me just say -- the K9 Advantix worked PERFECTLY on my large-breed dogs - never a single flea or tick. Knowing that we were heading into a tick-infested area, I put the Advantix drops on my 80 lb german shepherd and my 7 lb papillon a week before camping. After a walk in the woods, I found one tick clinging to the outside hair of my german shepherd, not attached -- easy to just flick right off before we went in the house. We didn't find any ticks on the papillon until we went home. First found one tick within 24 hours, had to remove it with tweezers but figured, hey, maybe it hadn't attached long enough to get killed by the Advantix. Then found another after 24 hours. And another after 48 hours (by that time it was engorged). Clearly the Advantix was not working on my papillon, though it seemed to be working on my large breed dog. Perhaps the drops, being such a low quantity due to his size, didn't absorb properly. But I wasn't about to joke around with ticks and lyme disease, so I started looking for alternative options. The day before I ordered the Seresto collar, my dog picked up a tick in my own backyard, in the city of Milwaukee, with mowed grass and everything. That was it - I was going to risk my fear of collar side-effects, watch my dog carefully, and get this collar. Fast forward 10 days after wearing the Seresto collar. No side effects (I checked FREQUENTLY for signs of rashes/redness/lethargy/hair loss), and we found a dead tick (not yet engorged) dead in the house. I'm convinced it was the Seresto collar, given that the small dog is the one who already picked up 4 ticks, while the larger dog barely picked up one. The large dog is still using up what's remaining of my K9 Advantix, but I'm likely to switch her to the Seresto collar next year. The convenience of having one collar for the whole non-winter season, the fact that it seems to WORK on my small-breed dog, and the cost per month for the collar vs the drops has sold me. I think the drops work fine for large breed dogs, but can fail due to miniscule dosage amounts on smaller breeds. The collar is safer for my dog when it comes to lyme disease, compared to the risk of side effects (which you should be on the lookout for with both drops and/or collar during the first few days of application -- anyone can have a reaction to medicine if they're allergic). Seresto has sold me on their collar -- now all we have to do is repeat the camping experience and see how long the collar lasts. Happy camping! ... show more
Reviewed in the United States on June 13, 2014 by Jennifer

  • Works better than drops.
Size: 2 Pack
Works a lot better than the drops we’ve been using.
Reviewed in the United States on May 30, 2025 by Ferrell Wilkins

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