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Seresto Flea & Tick Collar for Large Dogs (6-Pack)

Rated 4.64 out of 5
(74 customer reviews)

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Price:$210.00

You save:$161.94 (43.54%)

  • Provides 8 months of continuous flea and tick prevention
  • Seresto flea and tick collar for large dogs work through contact, so fleas and ticks do not have to bite your dog to die
  • Veterinarian-recommended flea and tick prevention for dogs in a convenient, odorless, and non-greasy collar; No need for messy monthly treatments
  • Starts to repel and kill fleas within 24 hours of initial application
  • Flea and tick collar for large dogs also helps treat and control sarcoptic mange and kills lice

From the manufacturer

Non-Greasy, Odorless Flea and Tick Collar

Find the right collar for your dog

Use your dog’s weight to determine which size is right for them.

  • Small: dogs up to 18 pounds. Fits neck size 5-11.75 inches
  • Large: dogs over 18 pounds. Fits neck size 10.5-23 inches

The Seresto large dog collar was designed with no upper weight limit.

Water-resistant

Seresto 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 8-month duration, dogs must not be bathed more than once a 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.

How does it work?

Active ingredients are stored in the collar’s innovative polymer matrix and released in low concentrations across your dog’s coat and skin for 8 months. Fleas and ticks are killed through contact, and don’t have to bite your dog to die.

How to Apply

Step 1

Insert the end of the collar through the buckle.

Step 2

Adjust the collar around the dog’s neck without it being too tight or too loose. It should be possible to enter two fingers comfortably.

Step 3

Pull excess collar through the loop(s). Collar length greater than 1 inch beyond the loop(s) should be cut off unless it is on a growing puppy.

Frequently Asked Questions

How long does it take to work on fleas?

Seresto kills existing fleas on dogs within 24 hours after application. After those 24 hours, new fleas are killed within 2 hours.

How do I know if the Seresto collar I purchased is authentic?

It is crucial that pet owners purchase real and genuine Seresto products from authorized and trusted retailers. Counterfeit collars and their packaging look very similar to the actual product. Be sure the collar does not have a greasy feel or an odor.

Does it expire?

There is no expiration date required on the packaging.

The product should be kept in its original packaging and stored as directed on the label.

What are the key ingredients?

The active ingredients in Seresto collars are Imidacloprid and Flumethrin: Imidacloprid to help protect against fleas and Flumethrin to help protect against ticks. No other product has this combination of ingredients.

About This Item

  • Veterinarian-recommended prevention treatment kills fleas and ticks on puppies and dogs 7 weeks and older weighing over 18 pounds.
  • Starts to repel and kill fleas within 24 hours of initial application and re-infesting fleas within two hours; works on contact with no painful biting required.
  • Also repels and kills ticks within 48 hours of initial application and re-infesting ticks within six hours; works on contact with no painful biting required.
  • Easy-to-use, 27.5-inch adjustable collar is odorless and non-greasy; quick-release feature and visibility reflectors provide extra safety.
  • Water-resistant formula continues working for up to eight months, even after bathing, swimming and sun exposure.

Active Ingredients: Flumethrin 4.5%, Imidacloprid 10.0%.

Use only one collar per animal. Fit collar around your pet’s neck, allowing for 2 fingers to fit between the collar and your pet’s neck to ensure a comfortable, yet snug, fit. Once collar is properly fitted, cut off any excess collar measuring 1″ or longer. The collar should be worn continuously for the 8 month protection period. Check periodically and adjust fit if necessary, especially when puppies are rapidly growing. Keep the collar in the bag and in the outer packaging until use. Replace the collar after 8 months for optimal tick and flea protection.

Water Resistance: It is unnecessary to remove the collar before immersing your pet in water. Seresto remains effective following a shampoo treatment, swimming or exposure to rain or sunlight. In order to maintain an 8 month duration, pets must not be bathed more than once a month. For pets that swim once a month or more, the control duration is reduced to five months for fleas and seven months for ticks.

Use & Care Instructions
Size Neck Recommended Weight Recommended Age
Small 15 inches up to 18 lbs over 7 weeks
Large 27.5 inches over 18 lbs over 7 weeks

Where is this product sourced from?

We source all our products from manufacturer approved distributors or directly from the manufacturers. Chewy takes pride in ensuring that our furry friends’ wellbeing is always our top priority. We have worked hard to partner with all of the manufactures to deliver 100% authentic products

I have never had a flea problem before. Where are my pets picking up fleas?

Fleas are very hardy pests that are quite capable of hitching rides on a variety of mammals. Wild animals or feral pets traveling through the environment may be a source for a pet’s exposure.Fleas may be brought to the house by: * You – attached to clothing, luggage, dog blankets, etc. * Your pet – any time your pet steps outside your house, they are potentially exposed to fleas, especially in areas where there are other animals. * Stray or homeless cats and dogs – since these animals are not being cared for, they are easy targets for fleas. A single feral cat walking through your backyard even just one time may drop many flea eggs into the grass or under shrubs. * Wildlife – particularly raccoons and opossums. These animals typically aren’t seen very often, because they are active at night. A single opossum can carry as many as 1,000 adult fleas! An opossum walking through your backyard even just one time can drop many flea eggs into the grass or under shrubs as they pass through. * Non-treated pets in the household – most dogs are treated for fleas and ticks. Often, the cats in the household are not, especially if they are indoor only cats. * Non-treated pets in the neighborhood – you may be vigilant about treating your pets for fleas, but your neighbor(s) may not.

What are the benefits of Seresto?

Inside the unique polymer matrix of Seresto are two active ingredients:

  • Imidacloprid has been used in products for years to control flea infestations.
  • Flumethrin effectively repels and kills ticks.Flumethrin works together with imidacloprid to provide dual action against fleas and ticks. No other treatment has this combination of ingredients.The active ingredients spread from the site of direct contact over the skin surface of the cat or dog.*Sustained release technology*Seresto works similarly to a monthly topical, but as the active ingredients wear off over time, a new supply is continuously replenished in low concentrations. The active ingredients spread from the site of direct contact over the skin surface.Bayer’s polymer matrix technology is designed to slowly and continuously release the active ingredients for eight months, a duration that makes it clearly different from other flea and tick collars.

Is Seresto water resistant?

Seresto is water resistant. The active ingredients of Seresto are contained within the Bayer Polymer Matrix, making it water-resistant. Therefore it is unnecessary to remove the collar before the pet is immersed in water. Seresto remains effective following a shampoo treatment, swimming, or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for eight months. In order to maintain an 8-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 five months for fleas and seven months for ticks.

What if my cat or small dog gets stuck while wearing a Seresto collar?

Because some pet owners may be concerned that a cat or small dog could get stuck while wearing a collar, Seresto is designed with a safety release mechanism. In the unlikely event of the cat being trapped, the cat’s own strength is sufficient to widen the collar to allow for quick release.A hard pull causes the ratchet-release mechanism to allow a widening of the collar.The small dog and cat collars are equipped with a predetermined breaking point. A harder pull triggers the breaking of the collar at this point.

What is the expiration date for Seresto for dogs?

There is no expiration date required on the packaging by the EPA for this product. The product should be kept in its original packaging and stored as directed on the label.

When can I bathe my dog after application of Seresto for dogs?

We recommend bathing BEFORE applying product. Seresto 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. There is no need to remove the collar for bathing. Please use a non-stripping, pet shampoo.

How often can I allow my dog to swim when using Seresto for dogs?

Seresto 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. 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. There is no need to remove the collar for swimming.

How often can I bathe my dog when using Seresto for dogs?

We recommend bathing BEFORE applying monthly product. The product can be applied once the pet is towel dried. We suggest using non-stripping shampoos that are specifically designed for use on pets. ‘Non-stripping’ shampoos are generally soap free formulations designed for general cleansing. Bayer makes a variety of shampoos that are non-stripping, general cleansing shampoos.* Seresto 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. There is no need to remove the collar for bathing.

How do I store and dispose of Seresto?

Do not contaminate water, food or feed by storage or disposal. Storage: Store in the original unopened container in a cool, dry place that is inaccessible to children. Disposal: Dispose of container, pouch and expired collar in trash.

How can I verify the legitimacy of this collar?

Seresto.online is an authorized retailer of Seresto® products, which means we purchase the products we sell directly from Elanco, the maker of Seresto®. If you would like to verify the legitimacy of your collar, call Elanco’s veterinary team at 1-800-255-6826.

Important Information

Fleas rise to the top of your pet’s coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

Reviews

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Customer Photos

74 Customer Reviews

  • Been using for last two years with good results and no problems

    By Darren Shroeger on 03.09.2022 at 12:58

    5 out of 5

    I have a 4 year old Brittany that loves to run the woods and meadows, always looking for birds. My vet recommended the Seresto collar two years ago and I went with it, preferring it to monthly medication. The 8 month lifespan exceeds our entire tick season here in Michigan.

    A friend messaged me that these collars were recently mentioned on the national news for killing dogs. I looked into it and it appears that yes some dogs have reacted to these collars (they obviously contain pesticides), with 100,000 “incidents” reported and 2500 deaths with 34 million collars sold. So that’s 0.2% having an incident such as skin irritation and 0.007% deaths.

    My dog is the world to me and I would never want to put her in harm’s way. But I’ve used these collars for the last two years with extremely effective flea/tick management and no problems.

  • Flea collar

    By April on 01.09.2022 at 16:00

    5 out of 5

    Got for my beagle and he doesn’t mind it at all. Seems to work great , no sight of fleas and if I do they’re dead .

  • Amazing and lasting results

    By Heather on 25.08.2022 at 19:04

    5 out of 5

    I absolutely love the Seresto collar! These are the only thing I’ve used for my pets for several years. Each collar generally lasts about 10 months so I only have to buy once a year. The collar is very durable and stays on. No odor or scent. Doesn’t seem to be affected by water. I leave it on when she swims, but take it off for baths. I have never found a flea on her while wearing the collar. I have found a couple of ticks crawling on her, but they did not bite. Great product!

  • Great collar

    By Carmen Pelham on 08.08.2022 at 04:07

    5 out of 5

    We live in a mountain area and the dog has never had a flea since wearing this collar.

  • This collar really works!

    By beth brown on 03.08.2022 at 11:12

    5 out of 5

    This is beau bear we live in the river on side of our home and woods on the other.
    Last year Beau got all kinds of ticks. Toward the end of summer we bought one of these collars and he didn’t get another tick!
    This year we got a new one before the ticks got crazy and he hasn’t gotten one yet!

  • Us dogs know

    By meadow on 12.07.2022 at 18:12

    4 out of 5

    As dogs we only use the best. Now Seresto send us free ones please.

  • This product is worth the price

    By Kindle Customer on 09.07.2022 at 11:16

    5 out of 5

    We have used the product one our two sweet dogs for 4 years and have had no problems at all with them. We also have not had any fleas or ticks. I highly recommend them and have to many people. They are so worth the price. I love that they are water resistant and hardly any scent at all. Will be buying them every year.

  • Protects my pretty boi and it never seemed to bother him

    By wakarramba on 05.07.2022 at 13:18

    4 out of 5

    Protects my pretty boi and it never seemed to bother him

  • By Raven on 28.06.2022 at 20:40

    5 out of 5

    I NEVERRRRRR write reviews but I had to for this product! It has worked a literally miracle for my boxer! He’s an outside dog and one day I noticed he had hundreds of fleas on him. He also had some scars from scratching so much. I tried several flea baths that just didn’t work.

    When I started researching flea collars I became VERY skeptical because there a lot of reviews about them irritating the dogs skin. But there were many more good reviews also.

    So I bought the 8 month Seresto collar and put it on my dog. I watch him very closely for the first 2 weeks and realized that the collar won’t harm my boxer. Great! Now let’s talk about results…

    Within 2 days, like the products claims, the hundreds of fleas were literally down to about 20-30ish. I gave him 2 flea baths within those first 4 days and he was FLEA FREE! No more scratching every couple of seconds. It’s now about 45 days later and ALL of his scratch scars have healed. He’s way more at ease and comfortable because he’s not being irritating by those damn fleas anymore.

    I definitely recommend this to everyone.
    BUY IT! 🙂

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