Seresto Large Dog Flea & Tick Collar | 8 Months Protection

This product is shipped from our US Amazon warehouse, and the estimated arrival time is 1-15 days. If the warehouse is out of stock, we will contact you and refund your order. This product enjoys 30 days of no-reason return!

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From the manufacturer

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

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

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.

Seresto Large Dog Advantage II Large Dog advantus Advantage Dog Treatment Shampoo Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 105,479 4.5 out of 5 stars 4,401 4.1 out of 5 stars 13,049 4.4 out of 5 stars 1,725 Price $59.98$59.98 $50.98$50.98 $63.98$63.98 $19.48$19.48 Form Collar Topical Drops Flea Soft Chew Flea Shampoo Treatment or Prevention Treatment + Prevention Treatment + Prevention Treatment Treatment Application Frequency Every 8 Months ― Do Not Exceed One Soft Chew in a 24-hour Period ― Kills Fleas? Kills Ticks? ― ― ― Kills Mosquitos? ― ― ― ― Kills Lice? ― ― ― Starts to Kill Fleas Within 24 hours ― 1 hour ―

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 and ticks 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 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 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. 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 Large 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.**

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