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Seresto Flea & Tick Control Collar For Large Dogs >8kgs By Seresto





Seresto Flea and Tick Collar Key Features

Up to 8 months' continuous protection in a single application
Kills fleas and repells and kills ticks without the need to bite your pet*
Vet strength


Seresto Flea and Tick Control Collar

Seresto Flea and Tick Control collar is clinically proven to kill fleas and repel and kill ticks for 7-8 months. It's the longest lasting protection available in a single application, so there's no need to remember monthly treatments.

•    7-8 months protection in a single application.
•    Clinically proven to kill fleas and repel and kill ticks.
•    Built in safety-release mechanisms for peace of mind.
•    Easy, long-lasting protection. 
•    No mess, grease or smell.
•    Recommended by vets.



How Seresto Flea and Tick Collars Work

Give your dog long-lasting protection against fleas and ticks with a Seresto flea and tick control collar for large dogs. Unlike other flea and tick protection, Seresto flea and tick collars are clinically proven to kill fleas and repel and kill ticks for 7-8 continuous months. It's the longest lasting protection available in a single application, so there's no need to remember monthly treatments.  Seresto has repellent action meaning ticks do not have to bite to be killed. As a result of this, Seresto is clinically proven to reduce the risk of canine vector borne diseases babesiosis and ehrlichiosis.
Using an advanced polymer system, the collar's active ingredients are slowly released at low doses onto your dog’s skin and coat to help keep them protected. There is no mess, no grease and no smell, plus it features a specially designed safety release mechanism to give you peace of mind. 

How to Fit the Seresto Collar

Simply place Seresto on your dog for the longest-lasting flea and tick protection available in a single application, meaning your dog can play-on without the worry of fleas and ticks.

Forget about fleas and ticks for 7-8 months. Fit and forget with Seresto.

Cutaneous use. One collar per animal to be fastened around the neck.
Remove collar from protective bag directly before use. Unroll collar and make sure that there are no remnants from the plastic connectors inside the collar. Adjust the collar around the animal's neck without tightening it too tight (as a guide, it should be possible to insert 2 fingers between the collar and the neck). Pull excess collar through the loop and cut off any excess length extending beyond 2 cm.

The collar should be worn continuously for the 7–8-month protection period and should be removed after the treatment period. Check periodically and adjust fit, if necessary, especially when puppies are rapidly growing.

For dogs above 8kg bodyweight use Seresto Flea and Tick Control Collar for Dogs 8kg and Over
One collar for dogs >8kg of 70 cm length.

Please read all product packaging before use.



Seresto Flea and Tick Control Collar for Dogs 8.01kg and Over - Imidacloprid 4.5g, Flumethrin 2.03g




I have never had a flea problem before. Where are my pets picking up fleas?

Fleas are very hardy pests. Your pet is potentially exposed to fleas every time they step outside your house, especially in areas where there are other animals. As stray or homeless animals are not being cared for, even a single feral cat passing through your garden can leave behind flea eggs that are then picked up by your cat or dog. Fleas may also be brought into the house through clothing, luggage, or non-treated pets in your neighbourhood.

What are the benefits of Seresto?

Seresto's unique polymer matrix contains two active ingredients:

Imidacloprid controls flea infestations 
Flumethrin effectively repels and kills ticks

The active ingredients spread from the site of direct contact over the skin surface, and are continuously replenished in low concentrations as they wear off over time. Bayer's unique polymer matrix technology means the active ingredients remain effective for up to eight months, a duration that makes it clearly different from other flea and tick collars.

How quickly will the collar begin working?

Seresto kills existing fleas on dogs within 24 hours after application. Once Seresto has been on your dog for 24 hours, re-infesting fleas are killed within two hours. Infestation prevention with new ticks starts within 48 hours after Seresto collar application. Re-infesting ticks are repelled and/or killed in as quickly as 6 hours.

Is Seresto water resistant?

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

What if my dog gets stuck while wearing a Seresto collar?

Seresto is designed with a safety release mechanism. In the unlikely event your dog becomes trapped, its own strength is sufficient to widen the collar and allow for a quick release. Seresto collars for small dogs are also equipped with a predetermined breaking point, so a harder pull will trigger the breaking of the collar.

When can I bathe my dog after application for Seresto for dogs?

We recommend bathing BEFORE applying product. The product can be applied once the pet is towel dried. There is no need to remove the collar for bathing. Please use a non-stripping, pet shampoo.

How do I store and dispose of Seresto?

Store in the original unopened container in a cool, dry place inaccessible to children.
Dispose of container, pouch and expired collar in the bin.


Please note: This is an NFA-VPS product, please fill in your pet details at the checkout so our veterinary medicines manager can approve use and avoid the order being delayed.

This product belongs within the animal medicines legal category of NFA-VPS (Non Food Animal - Veterinarian, Pharmacist, Suitably Qualified Person).
From Elanco Animal Health UK 



*Information is regarding mode of action & is not intended to imply parasites can be completely stopped from biting; an attachment of single ticks after treatment cannot be excluded.




Use Medicine Responsibly. Seresto ® Flea & Tick Control Collar contains imidacloprid and flumethrin [NFA-VPS].

Further information available from the datasheet at www.seresto.co.uk or on request.


® Registered trademark of Bayer AG. Bayer plc, 400 South Oak Way, Green Park, Reading, RG2 6AD. Tel: 0118 206 3000

Ratings & Reviews

40 reviews

Effective and comfortable

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We have been using this product for some years now and we really like it. It is effective and our dogs do not mind it. So, it is perfect.

Seresto Flea collars

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We find that the flea collars remain efective for about 6 months . None of our three dogs seem to mind having the collars on

Everything we needed

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Excellent service, quick efficient and the best price around that I found.

Used these for years with other dogs

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so purchased for new puppy but she is not quite big enough for it but will be using when she has had all jabs and we can venture out. If you have not used before should try they are brilliant and highly recommend

Teliable product that actually works for up to 8 months as it says.

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I have been using these collars for years on my dogs, but have never needed one in January before! I'm happy to buy from petshop.co.uk as the prices are reasonable and it's always good to help a young start-up company. I'll continue to order from you if the prices stay this good.

Good product and service

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Good product and service.

Great flea and tick collar

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A good product that keeps your dod flea and tick free. Yes would recommend this product.

Good product

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Arrived in excellent time. Won't know if the product is any good until it is used!

Good service/good product

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Dog has been wearing collar for a week now. No adverse reactions. He is usually very sensitive to flea and tick control methods.

Great service

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Very prompt delivery and well packaged.

Good for ticks

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Bought as we walk our cocker spaniel in woods/long grass and he kept picking up ticks and his Advance flea treatment doesn't cover ticks. Easy to cut down, and he doesn't notice it at all. Took about a week to work completely, but he has only had one 'visitor' thus far!

Great Product

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Brilliant product. I’ve used these for a few years now. Really fast delivery. Excellent company to buy from.


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I have known Seresto for a long time and can only recommend it, It is really useful and brings security


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i Bought it because my friend suggested, she is using it for years now her dog is 9 years old. My puppy is 10 months now, Bella feels ok wearing it, collar doesn’t smell easy to put on I just had to cut it little bit. Excellent customer service and express delivery. Definitely recommend ordering from this site.


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i Bought it because my friend suggested, she is using it for years now her dog is 9 years old. My puppy is 10 months now, Bella feels ok wearing it, collar doesn’t smell easy to put on I just had to cut it little bit. Excellent customer service and express delivery. Definitely recommend ordering from this site.

Seresto Flea Collar

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Bought one each for both my dogs. I have used them before but found Petshop the cheapest for this product. Very happy, swift delivery would recommend.

Seresto flee and tick collar

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Need this item as we walk dog near deer and sheep. Only had 2 ticks in 4 years.

At last no prescription!

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My Standard Poodles are walked regularly across the South Downs. Coming back from a walk four years ago they both had ticks and a friend recommended these, which then required a prescription from the vet. I have used them every year since then, from March to October and they have been clear. An easy solution, easier now no prescription is needed.

Works for our dog

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Used for first time last year after finding ticks on dog after having applied spot-on types at back. Once the collar was on we didn't find another "visitor" all season. Stands to reason to go straight for the one that works.


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Excellent service and value

Flea collar

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product recommended by a friend, brilliant sale price with long shelf life but have not used yet as waiting for spot on to expire

Good price & service.

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I've used these collars for quite a few years on three Spaniels, in an area of many Sheep & Roe Deer, no more ticks & fleas.

Very pleased that they can now be bought on the open market, rather than paying over inflated vet prices.

My vet was charging over £60 per collar, if you asked for a prescription to buy online, they would charge about £16 for a A4 printout.

recommended product for flea control

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I was advised by my vet to purchase the seresto flea collar for my dog with a slight flea allergy, I have also bought one for my cat and so far it is working better than any other flea treatment including the top branded spot on available without prescription

Cost effective

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My dog has only had the collar on for 5 days so can’t say how good but so far so good! Will be interested to see if it does last8months! Cost effective in the long run if it does!


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I bought Seresto flea collars for my two dogs believing that it's the best product of its kind. My dogs are exercised daily where they mix with many other dogs. Within two days of putting on these collars my dogs caught fleas, something that never happened with the spot treatment I previously used. I left it for a week - grooming the dogs daily as usual - but after eight days they still have one or two fleas (they were alive but not jumping).
I have now removed the Seresto collars and returned to using Frontline Plus spot treatment.