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Product guide

Seresto Flea and Tick Collar for Dogs Over 8kg, 7–8 Months

Seresto Flea and Tick Collar is a collar treatment for dogs over 8kg, with the listing claiming 7–8 months of flea and tick protection from one collar. Its adjustable collar format avoids a recurring monthly application, though buyers should follow the supplied directions and confirm this size suits their dog.

At a glance

  • The listing claims 7–8 months of protection from one collar.
  • Described as killing fleas and repelling and killing ticks. The listing states fleas are killed within 24 hours.
  • A ratchet system and loop are described for adjusting and securing the collar.
  • The listing says the collar releases its active ingredients steadily across the dog's skin and coat.
Price
£28.23Save 18%

Reference price: £34.49

Price checked: 14 Nov 2026

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Often bought together

Pros and cons

Pros

  • A single collar is claimed to provide months of coverage, reducing the need to remember frequent treatments.
  • Collar application avoids a liquid or greasy-on-coat format, according to the listing.
  • Uses imidacloprid and flumethrin, as specified in the listing.

Technical specifications

10 specifications
Identity
BrandSeresto
Model86631660
Fit and formulation
Listed sizeDog Large (>8kg)
Target speciesDog
Breed sizes listedGiant, Large, Medium
Item formCollar
Active ingredientsImidacloprid, Flumethrin
ScentUnscented
Age rangeAdult
Dimensions and installation
Weight listed6.53 Grams

What to know before buying

Listing details to confirm

Protection is stated as 7–8 months in one part of the listing and up to 8 months elsewhere. Confirm the applicable duration and follow the product directions. The listing says dogs over 8kg, while its size field says Dog Large (>8kg) and its breed-size field includes Giant, Large and Medium. Confirm the collar size and suitability for your dog before purchase.

What’s in the box

Included
  • Seresto flea and tick collar

Who is it for?

A good fit for

  • Owners of adult medium, large or giant dogs over 8kg seeking a collar-based flea and tick treatment.
  • Buyers who prefer a listed multi-month treatment interval over regular applications.

Less suited to

  • Dogs weighing 8kg or less, based on the listed size threshold.
  • Buyers seeking treatment in a form other than a collar.
Seresto Flea and Tick Collar for Dogs Over 8kg, 7–8 Months · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 1,088 ratings
  • 5 stars77%77%
  • 4 stars9%9%
  • 3 stars3%3%
  • 2 stars2%2%
  • 1 star9%9%

Customer feedback highlights perceived effectiveness, with customers reporting that it works within a few days and lasts 7–8 months. Odourlessness and comfort are also praised, including reports that dogs tolerate wearing it. Value opinions are mixed, with some finding it worth the money and others considering it overpriced. These experiences may matter to buyers choosing a collar for extended use, but they do not independently confirm the listing's protection claims or duration.

Positive themes

  • Customers report effectiveness and lasting use.
  • Customers appreciate the lack of odour and say their pets are comfortable wearing it.

Mixed feedback

  • Opinions on value for money differ, with some considering it worthwhile and others finding it overpriced.

Frequently asked questions

How long does one Seresto collar last?

The listing gives 7–8 months in the title and feature text, and says up to 8 months in the description. Treat the duration as listing-claimed and check the product directions.

Which dogs is this collar listed for?

It is listed for dogs over 8kg and as Dog Large (>8kg). The breed-size field also names medium, large and giant dogs, so confirm fit for your dog's weight and size.

What active ingredients are listed?

Imidacloprid and flumethrin.

How is the collar applied?

The listing describes placing it around the dog's neck, adjusting it and securing it with a ratchet system and loop. It directs buyers to follow the product manual.

Seresto Flea and Tick Collar for Dogs Over 8kg, 7–8 Months · photo 3
Additional product photo 3

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