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Long-Lasting Protection
Enjoy up to 8 months of continuous flea and tick prevention, ensuring your pet stays safe and comfortable all year round.
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Easy and Convenient
Hassle-free application with a simple collar, eliminating the need for messy topical treatments or frequent dosing.
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Vet-Recommended Formula
Trusted by veterinarians, Seresto uses a unique combination of active ingredients proven to kill and repel pests effectively.
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Water-Resistant Design
No need to remove the collar during swimming or bathing, as it remains effective and secure even when wet.
Seresto® Flea And Tick Collar
Ultimate Flea and Tick Protection with Seresto
Seresto offers top-tier flea and tick prevention for pets, combining convenience and efficacy in a water-resistant collar.
Trusted by veterinarians, Seresto delivers up to 8 months of continuous protection, ensuring pets remain pest-free and comfortable.
Choose Seresto for long-lasting, hassle-free care that keeps pets happy and healthy.
All-in-One Flea & Tick Collar for Dogs & Cats
Up to 8 months of continuous flea and tick protection for dogs and cats of all sizes.
Non-greasy, odorless, lightweight, and water-resistant—designed for everyday comfort and durability.
Safe for puppies, adult dogs, cats, and kittens 10 weeks and older, making it the perfect all-around solution for multi-pet households.
Fast-Acting Flea & Tick Collar – 24H Protection
Vet-recommended collar that starts killing and repelling fleas within 24 hours, offering up to 8 months of hassle-free protection for dogs and puppies. Keep your furry friend comfortable, itch-free, and safe all year round.
#1 Non-Prescription Flea & Tick Brand for Pets
Trusted by pet owners nationwide, this top-selling flea and tick brand delivers effective, veterinarian-recommended protection without a prescription. Proven to help keep your pets free from fleas and ticks, so they stay healthy, happy, and comfortable. (Data on file)
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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.
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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.
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Vet-Recommended
Seresto is the #1 veterinarian recommended flea & tick collar.*
*Based on survey data, 2023
Long-Lasting Flea & Tick Protection for Pets
- Provides up to 8 months of continuous protection, keeping your pets safe from fleas and ticks throughout the season.
- Kills and repels fleas on contact, helping prevent infestations and keeping your pets comfortable and itch-free.
Proven Safe and Trusted by Millions
Reviewed and approved by 80 global regulatory authorities, this flea and tick collar has a strong safety record. With over 33 million collars used in the U.S., pet owners nationwide trust it to keep their cats and dogs protected and comfortable.
How To
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Step 1
Be sure to attach the collar snugly so it stays in constant contact with your pet’s skin and fur, ensuring effective protection for both cats and dogs.
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Step 2
Use the two-finger rule: thread the end of the collar through the buckle, then adjust it so you can comfortably fit two fingers between the collar and your pet’s neck, suitable for both cats and dogs.
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Step 3
Pull any excess collar through the loop(s) and trim off the extra length, unless the collar is being used on a growing puppy or kitten. Refer to the package insert for full details.
Fast-Acting Flea Protection
Starts to kill and repel fleas within 24 hours of the first application, providing rapid relief from itching and discomfort. Continuous protection helps prevent new infestations, keeping your pets happy, healthy, and comfortable all season long.
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.
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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.
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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.
Odorless, Water‑Resistant Flea & Tick Shield
No greasy residue, no monthly hassle — stays effective even after swimming or rain, offering up to 8 months of continuous flea and tick defense with a clean, easy‑to‑wear design.
Testimonials
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As a pet owner with indoor-outdoor cats, flea and tick control has always been a challenge. This collar is completely odorless and works fast—fleas and ticks were gone within days. My cats show no irritation, and the protection lasts up to 8 months. Best of all, no messy topical treatments. After trying so many products, this one finally works.
Emilie Santana
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This flea collar has truly been a game-changer. After years of dealing with fleas, my dog has stayed flea-free—even during camping trips. The relief from scratching was almost immediate. Occasionally, there’s mild neck irritation, but removing the collar briefly solves it. Despite a flea-heavy yard, the collar works great. If it lasts six months or more, it’s absolutely worth it. So far, I’m very impressed.
Rory Wallace
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The lightweight, adjustable design fits comfortably without irritation, and there’s no strong odor or greasy residue—such a refreshing change from traditional products. I’ve seen great results on dogs of all sizes, from small to very large breeds. The collars also last longer than expected, making them a solid investment in your pet’s comfort and protection. I highly recommend it to anyone looking for reliable flea and tick control.
Ruth Wilkerson
FAQs
Can my pet swim or get wet with the collar on?
Can my pet swim or get wet with the collar on?
Yes — Seresto collars are water‑resistant, so they can remain effective after occasional bathing or swimming. However, frequent wetting (e.g., multiple baths per month) can shorten the effective protection period.
Do I need a prescription to buy Seresto?
Do I need a prescription to buy Seresto?
No. Seresto collars are available without a prescription and can be purchased online or from many pet retailers.
Is the collar suitable for all sizes of pets?
Is the collar suitable for all sizes of pets?
There are different collar sizes for small and large dogs (and versions for cats as well). It’s important to choose the right size for your pet for proper protection.
How do I ensure the collar works properly?
How do I ensure the collar works properly?
Make sure it fits snugly (you should be able to fit about two fingers between the collar and neck), and follow all product instructions. Good fitting ensures the active ingredients are properly distributed over the skin and coat.
Can my cat swim or bathe with the collar on?
Can my cat swim or bathe with the collar on?
Yes, the collar is water-resistant, so occasional bathing or swimming won’t immediately reduce its effectiveness.
Does the collar smell or irritate my cat?
Does the collar smell or irritate my cat?
No — it’s odorless, lightweight, and non-greasy, designed to be comfortable for cats and kittens.
How do I make sure the collar works properly?
How do I make sure the collar works properly?
Fit the collar snugly — you should be able to slide two fingers between the collar and neck — and follow all product instructions for continuous protection.