Seresto Bayer Large Dog Above 18lb Flea and Tick Collar – 8‑Month Use

Seresto Large Dog Flea and Tick Collar – 8 Month Protection

Flea and Tick Collar for Large Dogs with Long‑Lasting, Water‑Resistant Protection

With its innovative delivery system, the Seresto 8 Month Flea & Tick Collar for Large Dogs & Puppies offers a breakthrough in tick and flea control for your precious pup.

This veterinarian-recommended treatment is specifically formulated to repel and kill fleas and ticks on contact with no painful biting required.

Inside the unique polymer matrix of this easy-to-use, non-greasy, odorless collar are two active ingredients: imidacloprid to control flea infestations, and flumethrin to repel and kill ticks, larvae and nymphs.

These ingredients work together to provide dual-action protection against parasitic pests for up to eight months!

How Seresto Works:

The collar uses a sustained-release system that distributes active ingredients across your dog’s skin and coat, providing continuous protection for up to 8 months.

Key Benefits

• Veterinarian-recommended prevention treatment kills fleas and ticks on puppies and dogs 7 weeks and older weighing over 18 pounds.
• Starts to repel and kill fleas within 24 hours of initial application and re-infesting fleas within two hours; works on contact with no painful biting required.
• Also repels and kills ticks within 48 hours of initial application and re-infesting ticks within six hours; works on contact with no painful biting required.
• Easy-to-use, 27.5-inch adjustable collar is odorless and non-greasy; quick-release feature and visibility reflectors provide extra safety.
• Water-resistant formula continues working for up to eight months, even after bathing, swimming and sun exposure.

How to Use

• Use only one collar per animal
• Fit collar around your pet's neck, allowing for 2 fingers to fit between the collar and your pet's neck to ensure a comfortable, yet snug, fit.
• Once collar is properly fitted, cut off any excess collar measuring 1" or longer.
• The collar should be worn continuously for the 8-month protection period.
• Check periodically and adjust fit, if necessary, especially when puppies are rapidly growing.
• Keep the collar in the bag and in the outer packaging until use.
• Replace the collar after 8 months for optimal tick and flea protection.

Precautions:

• Read the entire label before use.
• Use only on dogs.
• Do not let children play with this collar.

Water Resistance:

• It is unnecessary to remove the collar before immersing your pet in water.
• Seresto remains effective following a shampoo treatment, swimming or exposure to rain or sunlight.
• In order to maintain an 8 month duration, pets must not be bathed more than once a month.
• For pets that swim once a month or more, the control duration is reduced to five months for fleas and seven months for ticks.

Who Is This For?

This collar is ideal for large dogs over 18 lbs, especially active or outdoor dogs that need long-lasting, low-maintenance protection.

Important Information:

• Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet.
• If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas.
• It may take up to 30 days to break the entire flea life cycle.
• Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

You May Also Like:

• Seresto Bayer Large Dog Flea & Tick Collar, 2‑Pack (18+ lb, 8‑Month) — a value option if you have two large dogs or want a backup collar.
• Seresto Elanco Flea & Tick Collar for Large Dogs Over 18 lb – 8 Months Protection — the updated Elanco version with the same long-lasting protection.
• Frontline Plus for Dogs 45–88 lbs – Flea & Tick Control, 6 Doses — extended spot‑on protection for large active dogs.
• Frontline Plus for Dogs 89–132 lbs – Flea & Tick Control, 6 Doses — long‑term coverage for XL dogs that spend a lot of time outdoors.

Disclaimer:

This product is intended for use on dogs only. Always read and follow all label directions and safety instructions before application. Individual results may vary depending on your dog's environment, activity level, and the severity of flea or tick exposure.

Authenticity Guarantee:

We guarantee that all Seresto (Elanco, formerly Bayer Animal Health) collars sold on our website are 100% authentic, factory-sealed, and sourced exclusively from authorized distributors. No repackaging, no substitutions, and no expired inventory — only genuine Seresto products with valid batch numbers.