Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Under 18 lbs. | 8 Months Protection
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Availability:
In Stock.
Arrives
Tuesday, Jul 21
Special Size Type: Standard
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
The Seresto flea and tick collar for dogs provides continuous 8-month flea and tick protection. Unlike oral flea and tick prevention products that require a bite, the Seresto collar repels fleas and ticks and kills through contact; no biting required. Frontline flea and tick treatment does not repel (based on label claims). Seresto dog flea collars contain active ingredients imidacloprid and flumethrin, which are slowly and continuously released in low concentrations, spreading from head to toes, even the tail, over your dog’s coat and skin. Seresto flea collar for dogs is water-resistant and remains effective after shampooing, swimming or exposure to rain or sunlight. (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 five months for flea control, and reduced to seven months for tick control.) This vet-recommended flea and tick collar for dogs is odorless, non-greasy and easy to apply. It can be used alongside other identification or restraining collars without damaging them. Avoid the hassle of messy monthly treatments and get the effective protection of Seresto dog flea and tick collars. Also available: Seresto flea and tick prevention for cats. 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
Item Volume: 31.64 Cubic Inches
Allergen Information: Allergen-Free
Dog Breed Size: Small
Unit Count: 1 Count
Age Range (Description): 7 weeks and older
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: #396 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Dog Flea Collars
#2 in Dog Flea Collars:
Brand Name: Seresto
Age Range Description: 7 weeks and older
UPC: 688957294651 724089579447
Global Trade Identification Number: 60
Manufacturer Part Number: 81857944
Model Number: 81857944
Unit Count: 1 Count
Included Components: 1
Warranty Description: No_warranty
Manufacturer: Elanco US Inc
Item Type Name: Collar
Manufacturer Contact Information: For any technical issues contact manufacture at
Item Form: Collar
Scent Name: Unscented
Dog Breed Size: Small
Pet Type: Dog
Target Species: Dog
Item Weight: 3.52 ounces
Volume: 31.64 Cubic Inches
Allergen Information: Allergen-Free
Active Ingredients: Imidacloprid, Flumethrin
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Special Size Type: Standard
Size: 1 Pack
Color: Gray
Seresto colors they kill the ticks if they climb and try to buy on your dog. They're not supposed to keep them off but if they get on the tick will bite and then they'll suck in all that poison and die. They work. I did get a Seresto collar made by the new company which is not there anymore I verified it had all the features that make it not counterfeit in my dog is wearing it ready for the text that are in my backyard. I'm very happy with it I am not including pictures cuz they're not necessary. My dog is small so the inside of the 10 has green and there's a green band around it outer edge and the safety seal has a red line down it in the front where it says the Resto has raised lettering and I matched the lot number on the 10 that was on the same plastic bag my collar was in inside the tin that was on the collar even though it's really hard to read on the collar it's all match. So this is definitely safe seller it was Seresto. It was not fake. I was worried about that. I put my Charlie on this Resto collar she passed away not from the collar she had a tumor. I miss her. This color is for my sister's Morkie Fleur and she's wearing it. A couple times we took the collar off for winter and then we put out in the spring they didn't like it so we don't take collars off anymore even if they've expired we order a new one. When we get it we take the old one off and put the new one on. I even got a little charm with her name and our phone number to put on the flea collar.
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Reviewed in the United States on April 29, 2026 by Toni Doe
Special Size Type: Standard
Size: 1 Pack
Color: Gray
I have used Ceresco collars for several years now. I have always found them effective and easy to use. My dogs always tolerated the collar well. I ordered two collar for my Chihuahua mix and my miniature poodle at the end of March. I received them April 1 and put them on my dogs that day. Yesterday, June 11 I took my dogs to the groomers and discovered the head flea. I couldn’t figure out why they were scratching. So there was either something wrong with these colors or Sreto has gone downhill in quality. Yes, I’m very frustrated because now I gotta figure out something else.
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Reviewed in the United States on June 12, 2026 by Betty H.
Special Size Type: Standard
Size: 1 Pack
Color: Gray
WORKS VERY WELL BUT IS VERY EXPENSIVE. OTHER BRANDS HAVE NOT WORKED AT ALL. WE HAVE 3 DOGS SO 3 COLLARS PER SEASON ADDS UP QUICK. WE ARE LOOKING TO OUR VET TO FIND AN ORAL PREVENTATIVE. IF YOU HAVE THE MONEY I HIGHLY RECOMMEND
Reviewed in the United States on May 31, 2026 by K. Gallagher
Special Size Type: Standard
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.
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Reviewed in the United States on June 18, 2016 by EA3776
Special Size Type: Standard
Size: 1 Pack
Color: Gray
Works pretty good but we still see fleas crawling on our dog. However, I think they don't bit her as much or reproduce much.
Reviewed in the United States on May 9, 2026 by Amazon Customer
Special Size Type: Standard
Size: 1 Pack
Color: Gray
My sweet Chihuahua finally is at peace. No more fleas, no more itching, and No reaction to collar. The collar is scentless and not greasy. I didn't see any hair loss but, she has only been wearing it a few days. I'm very happy with my purchase and can say I didn't expect it to work but, it definitely did. It's nice to see my fur baby not itching ever second and I think she appreciates not having a bath every day too. Purchased more for my other fur babies.
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Reviewed in the United States on June 22, 2026 by T. Howell
Special Size Type: Standard
Size: 1 Pack
Color: Gray
I live at Ground Zero for all kinds of ticks (Cape Cod, MA) and the spring can be a nightmare if you have an unprotected dog. My dog takes a once-a-month oral flea, tick and worming med but she still gets ticks without this collar. According to her vets, the Seresto collar and the oral med work via different physiological systems of the body and they say you can use both, together, without hurting the dog. This is the 4th tick season I have added this collar without any problem and it DOES work better than any tick preventive I’ve used (I’ve had dogs my whole life). The only thing I would advise is that you put the collar on the dog as per the instructions but do so 2 weeks before you think you need it because it seems to take that long to maximize it’s effectiveness. If you have any concerns, talk to your vet.
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Reviewed in the United States on May 12, 2026 by CHS
Special Size Type: Standard
Size: 1 Pack
Color: Gray
Please be cautious of using these collars, we had a terrible expirence. My mom and I both purchased sets of these collars, for dogs and for cats using the appropriate species specific sets, as flea prevention. Both households have dogs and cats. In total we spent close to $150 dollars each and subscribed to auto renew the purchases due to the really great reviews. The first 2 days they seemed to work really well! We found some dead fleas on the dogs after they came in from outside and no living fleas anywhere. Day 3 my moms Labrador began itching himself constantly- mostly around his neck and back. Hes older with some food allergies so we at first thought he got into something (as hes notorious for eating trash and sneaking cat food) and did not connect it to the collar. We kept an eye on him and over night he developed large weeping sores everywhere the collar touched as well dry itchy spots along his back and chest. Those spots later developed into sores and the poor guy was miserable. Knowing he's prone to allergies we removed his collar and bathed him/treated the sores but left the collars on Every one else as they didn't react similarly and chalked it up to being a fluke due to his pre existing allergy problems. That was, however, not the case. Over the next 3 weeks everyone we put a collar on began digging/scratching themselves raw (4 dogs, 7 cats total between both houses). My oldest cat developed large weeping sores everywhere the collar touched and she did not previously have a history of allergies. Ive used collars on her in the past and she never had a reaction. She lost the fur around her neck (as of now about 2ish months later its still not grown back) and had a decreased appetite as well as becoming very lethargic. 2 other cats developed bald spots and sores on their necks where their collars touched while the rest continued to develop bald spots/red and itchy skin. I have two daschunds and at the same time that we discovered the balding/sores on the cats, my male daschund very suddenly developed Hemoragic Gastroenteritis. He previously had a clean bill of health but very suddenly became extremely lethargic, refused food and water, was vomiting and had bloody, jelly like stool. Wednesday night he went to bed fine, ate dinner and was playful. Thursday morning he refused breakfast, and by that afternoon/early evening he wouldn't move, eat, drink and his stool was entirely bright red blood. We removed all collars and rushed him to the emergency vet clinic- closest one being almost 2 hours away from us. He was hospitalized over night and required 3 more back and forth trips and an extensive medication regimen before he was finally on the mend. Speaking to the emergency veterinarian she could not 100% say that the collar caused the condition, as the condition itself is still largely unknown and seems to have many triggers. However she said allergies and allergic reactions have caused or triggered gastroenteritis before. Other causes can be parasitic infections, food allergies/intolerance, infections, certain viruses and exposure to certain chemicals. So while they could not 100% confirm the collar contributed to his health emergency they could not 100% rule it out either. He did not have parasites, any food changes or viruses at the time of his admittance. After a steep 2k vet bill and money for gas back and forth my dog thankfully seemed to make a full recovery and is doing well. My other dog expirenced some thinning fur on her neck but no sores or other health conditions. My moms other dog, a terrier, expirenced very red, painful and inflamed skin. He itched himself relentlessly but thankfully did not develop sores. Although he did seem to have a brief rash along his stomach and legs. This rash resolved shortly after removing his collar and routinely applying dog safe rash cream. In addition to the multiple allergic reactions and possibly related health emergency, the collars did not seem to work after a week. The dogs would come in from a walk or playing outside and we'd find several live fleas on them a piece. We live in an area where fleas have been horrible this year but its like after an initial week of success the fleas were suddenly immune to these collars. If you already have a flea infestation these collars will do nothing for you, they barely worked for prevention purposes alone. Over all, I urge anyone looking into using these collars to either try a different product all together or keep an extremely close eye on your pets and observe for an allergic reaction. I know every pet is different and every pet may have an allergy to a different flea med/preventative because they are essentially bug poison. But for a product meant to be used on animals we had way too many allergic reactions occur one right after the other and something is not right with either the entire product or at least the batch we received. During the time we used the collars we had no other changes happening that could have caused reactions. There were no food changes, all our animals were previously very healthy, only one animal (the Labrador) had a history of allergies and sensitive skin, there were no environmental changes, no new treats, no new shampoos/changes in bathing or anything else we could think of that would contribute to these reactions. In addition, the timing of my dogs sudden health emergency was extremely suspect. I can't with 100% confidence solely blame the collar, but I find it strange that a year old puppy with no parasites or pre existing health concerns or exposure to toxic substances would suddenly, in a matter of days, decline to the point of requiring a hospitalization. My family and I have unsubscribed and will personally not be using this brand of flea control again. It was a miserable, and very expensive, expirence for us and our pets that in the end did absolutely nothing to prevent or kill fleas. Please be very careful if you choose to use this product and monitor your pet very carefully in case they too expirence an allergic reaction or other health condition.
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Reviewed in the United States on August 20, 2020 by Jourdan