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Protect the Pets You Love Seresto Flea & Tick Collars — Up to 8 Months of Protection
Seresto® provides up to 8 months of flea and tick protection for dogs and cats from a single collar.
Up to 8 Months Flea & tick protection
Shop Seresto Collars by Pet
- Free Shipping On every order
- Genuine Products Authentic Seresto only
- Up to 8 Months Flea & tick protection
- Customer Support Here to help
Single collars & 2-packs
Shop Seresto Flea & Tick Collars
Choose a single collar or a 2-pack for each pet in your home.
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How to Identify Genuine Seresto Collars
Counterfeit Seresto collars are sold online. Learn how to check the EPA registration number, the label and the packaging before you buy.
View the Authenticity Guide
Why Seresto
Why Choose a Seresto Collar?
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Up to 8 months of protection
One collar provides up to 8 months of flea and tick protection. -
Flea & tick protection
Kills and repels fleas and ticks through contact. Dog collars also treat and prevent lice. -
Odorless & non-greasy
No liquid to apply and no lingering smell. -
Water-resistant design†
Built for pets with active, outdoor lives.
†See product label for more information.
Size guide
Seresto Collar Size Guide
Seresto collars are sized by species and weight. Match your pet to the right collar below.
Seresto Small Dog
Up to 18 lbs. Dogs & puppies 7 weeks of age and older, up to 18 lbs. (8 kg) Fleas · Flea larvae · Ticks · LiceSeresto Large Dog
Over 18 lbs. Dogs & puppies 7 weeks of age and older, above 18 lbs. (8 kg) Fleas · Flea larvae · Ticks · LiceSeresto Cat
Cats & kittens Cats & kittens 10 weeks of age and older Fleas · Flea larvae · TicksRead the entire product label before use. Questions about your pet’s health? Ask your veterinarian.
About Seresto
Seresto Flea and Tick Collars for Dogs and Cats
Seresto® by Elanco is a flea and tick collar that provides up to 8 months of protection from a single collar, so there is no monthly application to remember. The collar is odorless and non-greasy, water resistant, and has a safety-release mechanism.
Seresto collars come in three versions. Choose by species and weight:
- Seresto Small Dog collar: for dogs and puppies 7 weeks of age and older, up to 18 lbs. (8 kg). Protects against fleas, flea larvae, ticks and lice.
- Seresto Large Dog collar: for dogs and puppies 7 weeks of age and older, above 18 lbs. (8 kg). Protects against fleas, flea larvae, ticks and lice.
- Seresto Cat collar: for cats and kittens 10 weeks of age and older. Protects against fleas, flea larvae and ticks.
Each collar is available as a single collar or a 2-pack, which works for two pets or for having the next collar ready when the first one’s protection ends. Shop all Seresto collars.
FAQ
Seresto Collar Questions
How long does a Seresto collar last?
One Seresto collar provides up to 8 months of flea and tick protection.
Which Seresto collar is right for my dog?
Choose the Seresto Small Dog collar for dogs up to 18 lbs. (8 kg) and the Seresto Large Dog collar for dogs above 18 lbs. (8 kg).
Can puppies and kittens wear a Seresto collar?
Seresto dog collars are for dogs and puppies 7 weeks of age and older. The Seresto Cat collar is for cats and kittens 10 weeks of age and older.
What does Seresto protect against?
Seresto dog collars protect against fleas, flea larvae, ticks and lice. The Seresto Cat collar protects against fleas, flea larvae and ticks.
How quickly does Seresto start working?
According to Elanco, Seresto kills fleas on dogs within 24 hours of initial application and is fully effective against new ticks after 48 hours.
Is the Seresto collar greasy or smelly?
No. Seresto collars are odorless and non-greasy.
Is the Seresto collar water resistant?
Yes. Elanco describes the Seresto collar as water resistant. See the product label for more information.
What is the difference between a single collar and a 2-pack?
The collar is the same. A 2-pack contains two collars, for two pets of the same size or to have a replacement ready when the first collar’s protection ends.
Read the entire product label before use. For questions about your pet’s health, ask your veterinarian.