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

4.5 4.5 out of 5 stars 99,460 ratings

To see product details, add this item to your cart. You can always remove it later.
Coupon:  
1 Pack
Large Dog Only

Purchase options and add-ons


About this item

  • Vet-recommended, premium flea & tick protection for dogs & puppies without the price tag
  • Long-lasting flea collar kills & repels fleas for 8 continuous months
  • #1 Veterinarian Recommended Flea & Tick Collar.**Based on survey data, 2023
  • Starts working within 24 hours to kill & repel fleas by contact so pests don’t have to bite your dog to die
  • Hassle-free, non-greasy, easy-to-use flea & tick protection

Customer ratings by feature

Easy to use
4.7 4.7
Scent
4.1 4.1
Durability
4.1 4.1
Water resistance
4.0 4.0

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From the manufacturer

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Kills and Repels

Kills and repels fleas and ticks by contact so pests don’t have to bite your dog to die.

Same-Day Effectiveness

Starts to kill and repel fleas within 24 hours of initial application and kills reinfesting ticks in as few as six hours.

Vet-Recommended

Seresto is the #1 veterinarian recommended flea & tick collar.*


*Based on survey data, 2023

How to

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Step 1

Be sure to attach the collar tight enough to ensure the collar is always coming into contact with your dog’s skin and hair.

Step 2

Use the 2-finger rule: insert the end of the collar through the buckle, then adjust the collar so that it is possible to hold two fingers comfortably between the collar and the neck.

Step 3

Pull excess collar through the loop(s) and cut off extra collar, unless it is on a growing puppy. See package insert for details.

Frequently Asked Questions

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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.

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Seresto Large Dog Advantage II Large Dog advantus Advantage Treatment Shampoo
Customer Reviews
4.5 out of 5 stars
99,460
4.5 out of 5 stars
4,184
4.2 out of 5 stars
12,142
4.4 out of 5 stars
1,666
Form Collar Topical Drops Flea Soft Chew Tick and Flea Shampoo
Treatment or Prevention Treatment + Prevention Treatment + Prevention Treatment Treatment
Application Frequency Every 8 Months Monthly Do Not Exceed One Soft Chew in a 24-hour Period See Product Label
Kills Fleas?
Kills Ticks?
Kills Mosquitos?
Kills Lice?
Starts to Kill Fleas Within 24 hours 12 hours 1 hour On Contact

Product guides and documents

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.56 x 4.5 x 4.5 inches; 3.84 ounces
  • Manufacturer recommended age ‏ : ‎ 1 month and up
  • Item model number ‏ : ‎ 86030594
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ January 28, 2013
  • Manufacturer ‏ : ‎ Elanco US Inc
  • ASIN ‏ : ‎ B00B8CG602
  • Customer Reviews:
    4.5 4.5 out of 5 stars 99,460 ratings

Looking for specific info?

Product Description

Give your dog long-lasting protection against fleas and ticks with a Seresto Large Dog flea and tick collar. Unlike other flea and tick protection, Seresto Large Dog flea and tick collars kill and repel fleas for eight continuous months. Seresto Large 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 Large Dog collars make your dog’s comfort a priority by killing on contact, so pests don’t have to bite your dog to die. Existing fleas die within 24 hours of application while reinfesting fleas are killed within just two hours – before they lay eggs – preventing further flea infestation. Re-infesting ticks die in as few as six hours, and tick infestations are eliminated within 48 hours of the initial application. Seresto Large 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 and aid in the treatment and control of Sarcoptic mange. Fleas and ticks not only cause discomfort; they can also transmit bartonellosis, tapeworms or Lyme disease. Check the product label for information on potential side effects.

Seresto Large Dog 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 Large Dog is a trademark of Elanco or its affiliates.

*Elanco Animal Health, data on file

**Seresto Large 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.

Important information

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. 7. Seresto comes with three optional reflector clips that can be attached to the collar to help keep your dog visible at night. The reflector clips should be evenly distributed on the non-overlapping part of the collar.

Legal Disclaimer

We are not responsible for misuse or mishandling of product due to negligence or failure to acknowledge instructional guidelines.

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Price$59.89$18.99$25.99$18.99$27.99$23.99
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Value for money
3.6
3.3
4.3
3.8
3.8
2.6
Longevity
3.5
3.5
4.3
3.4
3.4
2.6
Water resistance
4.0
3.6
4.6
3.8
3.8
Easy to use
4.7
4.5
3.6
Scent
4.1
3.6
4.6
Sold By
Heartland Veterinary Supply
kingmo Pet
Fipukin
NEW THINKING TECHNOLOGY INC
NEW THINKING TECHNOLOGY INC
CheyenneMoseley
target audience
Small Animals
Small Dogs and puppies
Dog
Dog
Dog
age range
7 weeks and older
All Life Stages
All Life Stages
All Life Stages
All Life Stages
scent
Unscented
Lemon
Lemon
Lemon
Unscented
form
Collar
Collar
Solid
Solid
Oil
active ingredients
Imidacloprid, Flumethrin
Lemon Complex Oil
Cinnamon Oil, Vanilla Oil, Lemongrass Oil, Thyme Oil
Compound Oil
weight
0.24 pounds
85 grams
40 grams

Customer reviews

4.5 out of 5 stars
4.5 out of 5
99,460 global ratings

Customers say

Customers like the protection, ease of use, and flea control of the pet pest control collar. For example, they mention it provides at least 6 months protection, is easy to put on, and eliminates the hassle of monthly applications. That said, opinions are mixed on side effects, quality, value, durability, and effect on skin.

AI-generated from the text of customer reviews

3,232 customers mention2,439 positive793 negative

Customers like the flea control of the pet pest control collar. They say it's durable, effective, and keeps pets flea-free. They also mention that it kills fleas and ticks and also destroys flee eggs before the flees. Overall, customers are happy with their purchase and recommend it to others.

"...my top priority, and this product has proven to be highly effective in keeping fleas and ticks at bay...." Read more

"...The collar has worked beautifully! It is still killing fleas and ticks like it promises, my dog has not had any allergic reactions to it..." Read more

"...It kills fleas, ticks and also destroys flea eggs before the fleas can hatch...." Read more

"...But this batch seemed to be defective. My pups still got fleas and a few ticks. I ended up having to get a months worth of oral flea meds to help...." Read more

572 customers mention436 positive136 negative

Customers like the protection provided by the pet pest control collar. They mention it provides the best flea and tick protection they've ever found, and it keeps their pets protected all season. The collar also prevents re-infestation, keeps insects away, and repels blood sucking pests. Customers also say it fits multiple size dogs and is very secure.

"...Its long-lasting protection, easy application, odorless formula, and water-resistant properties make it a reliable and convenient choice for any dog..." Read more

"...This works out to around $6.25 a month for the best flea and tick protection I've ever found...." Read more

"...of repelling any blood sucking pests...." Read more

"...Both ate them while she while crated with several toys. This one dog got super sick. Foaming at the mouth and vomiting for days...." Read more

562 customers mention541 positive21 negative

Customers find the pet pest control product easy to use. They say it's easy to put on, lasts quite awhile, and convenient than most other options. Customers also say the instructions are clear and easy to understand. They mention that the collar is easy to apply and long-lasting, making it no muss, no fuss.

"...Its long-lasting protection, easy application, odorless formula, and water-resistant properties make it a reliable and convenient choice for any dog..." Read more

"...Have not had a issue with ticks and fleas for years. Is easy to use" Read more

"I like that the delivery was on time and followed all instructions. The product was for my dog Bruno. A flea and tick collar." Read more

"Easy to put on" Read more

8,043 customers mention5,442 positive2,601 negative

Customers are mixed about the quality of the pet pest control collar. Some mention that it works wonders, while others say that it doesn't work. Some say that the collars break easily and are hidden in fur.

"...odorless formula, and water-resistant properties make it a reliable and convenient choice for any dog owner...." Read more

"...The collar has worked beautifully!..." Read more

"...Yeah theyre not so great. Break easy and are hidden in fur so it doesnt work. They also became a tangle spot on my pom...." Read more

"...It kills fleas, ticks and also destroys flea eggs before the fleas can hatch...." Read more

2,907 customers mention1,727 positive1,180 negative

Customers are mixed about the value of the pet pest control. Some mention it's well worth the price, while others say it'd be too expensive to replace 2 or 3 times a year.

"...of continuous protection, which is incredibly convenient and cost-effective...." Read more

"...but I’ve been waiting for these to work and they haven’t.. what a waste of money" Read more

"...but it is very well worth it if you have a flea and/or tick problem...." Read more

"...But the collars work very well and are worth the money on their own...." Read more

1,320 customers mention807 positive513 negative

Customers are mixed about the durability of the pet pest control. Some mention it lasts longer than 6 months, has no signs of breakdown, and stays active for 8 months. However, others say that it only lasts half the time they advertise, breaks several times, and is not strong enough to keep ticks off their pet.

"...Great 9 month product. Never any bugs on them.But I will say, it claims to be non toxic if eaten. One young dog was fine...." Read more

"...It advertises reflective attachments. Yeah theyre not so great. Break easy and are hidden in fur so it doesnt work...." Read more

"...I like how long they last, giving you some wiggle room on both ends of summer.The only thing I don't like is that there's only small and large...." Read more

"...They last thru baths and swims in the lake. Keep on working. I love the reflective clips when they're out at night." Read more

674 customers mention344 positive330 negative

Customers are mixed about the effect of the pet pest control on their skin. Some mention that it never seems to irritate their skin, while others say that it increased their itching and developed a severe rash.

"...chemical smell, Seresto is completely odorless, making it pleasant for both my dog and me...." Read more

"...Boy was I wrong. It turns out each time I re-applied, he would itch, regardless of how much each dosage was...." Read more

"...is still killing fleas and ticks like it promises, my dog has not had any allergic reactions to it..." Read more

"...After about two weeks shy of the 6 month mark, my dog started itching again. He started piling up fleas again. I Had to purchase a new one yesturday...." Read more

550 customers mention378 positive172 negative

Customers are mixed about the side effects of the pet pest control collar. Some mention that it has no side effects at all, while others say that it contains very aggressive chemicals that can have nasty side effects.

"...But I will say, it claims to be non toxic if eaten. One young dog was fine. Another dog got her collar off...." Read more

"...Saves me tons with having six dogs as I already must buy heart pills from the vet. Have been using these collars for years with no issues." Read more

"...a skin reaction, out of nine different dogs 5 have had terrible chemical burn reactions, nothing that could be called a rash...." Read more

"This is second one bought. No side effects on my dog. No fleas or ticks for 8 months. Absolutely happy with this...." Read more

Works!
5 Stars
Works!
We have bad fleas in our yard and we buy these once a year for our dogs. They fit from our large dog to our smaller dogs. We have never had any issues and have been using for years.
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Reviewed in the United States on October 23, 2023
Size: 1 PackStyle: Large Dog OnlyVerified Purchase
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Reviewed in the United States on July 22, 2014
Size: 1 PackStyle: Large Dog OnlyVerified Purchase
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