Seresto® Flea And Tick Collar

A Boxer dog and a Russian Blue cat both wearing Seresto flea and tick collars.
Seresto® Flea And Tick Collar
Seresto® kills and repels fleas and ticks through
contact — no biting required. Plus, it works for 8 continuous months, saving you from the
hassle of monthly topicals or orals.
Flea and tick prevention, reinvented
flea-tick-icon
Kills and repels fleas and ticks through contact — so they don’t have to bite to die
An icon of the number eight
Stays effective for 8 continuous months
One non-greasy, odorless collar instead of messy monthly treatments
Water-resistant* — no need to remove it before swimming or bathing
Meet the #1 selling non-prescription flea and tick brand.*

Protects against: Fleas, ticks and flea larvae in cats and dogs; chewing lice and sarcoptic mange in dogs

Works for: Dogs and puppies 7 weeks of age and older; cats and kittens 10 weeks of age and older

Application type: Collar

Treatment frequency: 8 months

No prescription required

Seresto® collar graphic showing the specifications of how the flea and tick collar works
Designed for your pet

No messy coatings here. Active ingredients are stored in the collar’s unique polymer matrix and released in low concentrations over 8 months. Plus, a familiar design and ratchet-release mechanism makes putting it on a snap.

Diagram showing how Seresto® works through the release technology on a dog and on a cat.
Systemic vs. nonsystemic protection

With oral preventives, active ingredients are ingested into the bloodstream and require fleas and ticks to bite to die. But the nonsystemic protection of Seresto® distributes them across the coat and skin — so fleas and ticks don’t have to bite your pet to die.

A flea crawling through a dog's fur.
Seresto® in action

How does it perform? See the results for yourself in our flea and tick demonstrations below. 

WATCH: Flea Efficacy 
WATCH: Tick Efficacy 

Find out how Seresto® compares to the rest
Seresto® in the community
Vet-recommended

Here are just a few reasons why pet owners and veterinarians alike love Seresto®.

A Boxer dog and a Russian Blue cat both wearing Seresto flea and tick collars.
Seresto® gives back.

Every Seresto® purchase helps us better support community partners like K9s for Warriors,
Adopt-a-Pet.com and more.

See how we help

A terrier mix happily rolling in the grass.
We’re on social!

Stay up to date with Seresto® and a global community of pets and owners.

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Top questions about Seresto®
How do Seresto® collars for dogs work?

The Seresto® collar works with a unique polymer matrix of two active ingredients, which spread from the site of direct contact over the skin surface of your dog:

  • Imidacloprid has been used in products for years to control flea infestations.
  • Flumethrin effectively kills and repels ticks.
  • Flumethrin works together with imidacloprid to provide dual action against fleas and ticks. No other product has this combination of ingredients.

Sustained release technology

Seresto® works similarly to a monthly topical in the fact that the active ingredients spread from the site of direct contact over the skin surface. The active ingredients in Seresto® are released in low concentrations from within the collar and, thanks to your pet's skin and coat, spread from head to toes, even the tail. As the active ingredients wear off over time, a new supply is continuously replenished in low concentrations for 8 months. The long-lasting, 8-month duration of Seresto® differentiates it from other flea and tick collars.

Watch our video for more information about How It Works.

https://player.vimeo.com/video/155767809
Do Seresto® collars for dogs expire?

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

Can I bathe my dog with the Seresto® collar on?

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. To maintain an 8-month duration, dogs must not be bathed more than once per month. There is no need to remove the collar for bathing. Please use a gentle, soap-free pet shampoo.

How do I apply the Seresto® collar and take it off my dog?

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.

Watch our application video for more information.

How to take the Seresto® collar off your dog:

Squeeze the outer sides of the buckle while pulling from the other end or side of the collar. Some may find it just as easy to cut the collar off before applying the new Seresto® collar.

https://player.vimeo.com/video/155767809
Do Seresto® collars for cats expire?

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

How do I apply the Seresto® collar and take it off my cat?

How to apply the Seresto® collar on your cat:

  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 cat's neck until it fits comfortably on them.
  5. Two fingers should fit beneath the collar and neck to ensure it is 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 kitten, where some additional length may be needed for adjustment as the kitten grows. Also, make sure the collar cannot be pulled over the head.
  6. Check periodically and adjust fit if necessary, especially if you have a kitten that is rapidly growing.
  7. Seresto® comes with three optional reflector clips that can be attached to the collar to help keep your cat visible at night. The reflector clips should be evenly distributed on the non-overlapping part of the collar.

Watch our application video for more information.

How to take the Seresto® collar off your cat:

Squeeze the outer sides of the buckle while pulling from the other end or side of the collar. Some may find it just as easy to cut the collar off before applying the new Seresto® collar.

https://youtube.com/embed/dnONpg32a7k
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