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Seresto Dog Collar

4.8/5 (279 Reviews)
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  • Information
  • Directions
  • Safety
  • Benefits
  • Seresto Dog Collar FAQ
Information
Seresto Dog Collar
  • Pet
    Dog
  • Treatment For
    Flea and Tick
  • Health Benefits
    External Parasites
  • Product Type
    Collar
  • Parasites Covered
    Flea and Tick
  • Protects For
    8 Months
  • Recommended For
    Dogs Older than 8 Weeks
  • Key Ingredients
    Flumethrin, Imidacloprid

Seresto Collar for Dogs

Seresto Collar for Dogs is a long-lasting treatment for your furry friend's protection from the most common external parasites, including fleas and ticks. It features a unique polymer matrix technology that allows the controlled release of the active ingredients, imidacloprid and flumethrin, over an extended period for continuous protection. This helps protect your dog from flea and tick infestations for 8 months.

This dog flea and tick collar kills and repels parasites through contact, eliminating the need for painful bites. This long-lasting collar is non-greasy, odorless and water-resistant. It remains effective even after a shampoo treatment, swimming or exposure to rain. Seresto is the #1 vet-recommended flea and tick collar according to Elanco USA and is trusted by dog parents.

Suitable For

Seresto Collar for dogs is suitable for puppies and dogs from 7 weeks of age.

Seresto Collar for Dogs Indications

  • Kills & repels fleas before they lay eggs.
  • Kills fleas that may transmit tapeworm infections, Bartonellosis and Rickettsiosis.
  • Protects from further flea infestations.
  • Kills fleas and helps reduce the risk of flea allergy dermatitis (FAD) or flea bite hypersensitivity (FBH).
  • Kills & repels ticks, including Black-legged ticks, Brown dog ticks, Lone Star ticks and American dog ticks.
  • Kills ticks that may transmit Lyme disease, anaplasmosis and other tick-borne diseases.
  • Prevents new tick infestations.
  • Kills chewing lice.

Ingredients: Flumethrin, Imidacloprid

Directions
How to Use Seresto Dog Collar

  • Just before use, remove the Seresto collar from the protective bag.
  • Unroll the collar and ensure no remnants from the plastic connectors are left inside the collar.
  • Insert the end of the collar through the buckle.
  • Adjust the collar around your dog's neck.
  • To ensure the collar is not too tight or too loose, leave a gap of two fingers between the collar and the dog's neck.
  • Pull the excess part of the collar through the loop(s). Cut the excess length, leaving about 1 inch (2 cm) beyond the loops.
  • Do not cut the excess length when using it on a growing puppy.
  • Check the collar periodically and adjust if needed.
  • Make your dog wear the collar continuously for uninterrupted protection and replace it with a new collar every 8 months.
  • It is designed with a release mechanism. Though unlikely, if your dog is trapped, the dog's own strength is sufficient to widen and quickly release the collar.

The table below shows the available packs of Seresto Collar for Dogs based on your dog’s weight.

Seresto Collar Dosing Table:

Dog Size Dog Weight (lbs) Collar Length inch (cm) Flumethrin (%) Imidacloprid (%)
Small Dogs Up to 18 15.0 (38) 4.5 10.0
Large Dogs Over 18 27.5 (70) 4.5 10.0
Safety

For Dogs:

This collar is for external use on dogs only. Do not use it on other animals. It is not indicated for use on puppies under 7 weeks of age. Before using it on aged, debilitated, pregnant, breeding, or nursing dogs, consult a veterinarian. To prevent drug interactions, talk to a vet before using it together with your dog's other treatments.

For your dog’s comfort, make sure the collar fits snugly but not too tightly. Avoid bathing your dog more than once a month to maintain its eight-month efficacy. The control duration is reduced to five months for flea control and 7 months for tick control for dogs that swim once per month or more.

For Humans:

Do not use it on humans. Avoid contact with the collar if you are sensitive to any of the active ingredients. Wash your hands after handling the collar. It contains small parts and can be a choking hazard. Keep it away from children.

General:

Keep it in the protective bag and in the outer packaging. Avoid attaching a leash to the collar, as this may cause breakage. For your peace of mind, check the collar fit regularly.

Are there Any Specific Storage Instructions for Seresto?

Store the Seresto Collar for dogs in its original, unopened container. Keep it in a cool, dry place. It is not recommended to use the container for food storage or other purposes. Avoid contaminating water, food or feed by storage or disposal.

Benefits

What are the Key Benefits of Seresto Collar for Dogs?

  • Long-lasting treatment: Each collar offers uninterrupted protection for 8 months.
  • Comprehensive protection: Kills and repels fleas and four different types of ticks.
  • No bites: Kills fleas and ticks on contact before they can bite.
  • Non-greasy & odorless: Does not leave a messy, oily residue or emit a strong smell of chemicals.
  • Water-resistant: Stays effective even after bathing, swimming or exposure to rain.
Seresto Dog Collar FAQ

How does the Seresto Collar for dogs work?

Seresto tick prevention collar contains imidacloprid and flumethrin. It uses a patented polymer matrix that spreads from the site of direct contact over your dog's skin surface. This sustained release technology allows slow release of the formula from within the collar, spreading from head to toe, including the tail. The new supply of active ingredients is continuously replenished in low concentrations for 8 months. Imidacloprid protects from fleas, while flumethrin targets ticks.

How effective is the Seresto Collar for dogs?

According to the product label, this best flea collar for dogs kills existing fleas on dogs 24 hours after the first application. After 24 hours, it kills new fleas on the dog within two hours and protects against further flea infestations for 8 months. Seresto flea & tick collar starts preventing new tick infestations at 48 hours post-application. After 48 hours, it repels and/or kills any new ticks on the dog within 6 hours.

Do I need to remove the Seresto collar before bathing my dog?

This water-resistant dog flea collar stays effective even after swimming, exposure to rain or a shampoo treatment. Do not bathe your dog more than once per month and use a gentle, soap-free shampoo to maintain its 8-month efficacy.

How do I remove the Seresto collar from my dog?

To remove the Seresto Collar from the dog, squeeze the outer sides of the buckle while pulling from the other end or side of the collar. You may also cut the collar before applying a new one.

Is the Seresto collar safe for dogs?

Yes. This 8-month flea and tick protection is safe for use on puppies from seven weeks of age. Consult a vet before using it on aged, debilitated, pregnant, breeding, or nursing dogs. To prevent drug interactions, talk to a vet before using it concurrently with other veterinary treatments.

Seresto Dog Collar Reviews

4.8
Average Rating 4.8 Based on 279 Reviews
  • 5 star
     221
  • 4 star
     55
  • 3 star
     3
  • 2 star
     0
  • 1 star
     0
79%
Recommend
79% of Reviewers Recommend This Product
Write A Review
4.8/5
Average Rating 4.8
Based on 279 Reviews
Hassle Free Collar Aug 18, 2026
Easy to use without remembering another monthly application.
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Hassle-Free Option Aug 11, 2026
Easy to use and no monthly application to remember.
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Hassle-Free Collar Aug 04, 2026
Long-lasting and convenient. No need to remember monthly doses.
Was this review helpful? 0 1
Hassle-Free Flea Control Jul 28, 2026
Lasts long and no mess like topical treatments. Very convenient for busy owners.
Was this review helpful? 1 0
No Hassle Jul 21, 2026
Easy collar with long-term results.
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Easy Solution Jul 14, 2026
Long-lasting collar with no mess.
Was this review helpful? 0 1
No Hassle Jun 30, 2026
Long-lasting collar with easy use.
Was this review helpful? 0 1
Hassle-Free Jun 23, 2026
Long lasting collar with no mess.
Was this review helpful? 0 1
Long Wear Jun 16, 2026
Lasts for months without any hassle.
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Long Wear Jun 09, 2026
Lasts for months without reapplication.
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Long Wear Jun 02, 2026
Lasts months with no hassle.
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