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Seresto Flea and Tick Collar for Dogs under 8 Kg (Blue)

4.8/ 5
Reviews: 125
  • Up to 8kg
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Seresto Flea and Tick Collar for Dogs under 8 Kg (Blue)
Seresto Flea and Tick Collar for Dogs under 8 Kg (Blue) 1 Piece
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Buy Seresto Flea and Tick Collar For Dogs Under 8 Kg(Blue)

Each Dose Contains- 45Mg/g Flumethrin, 100Mg/g Imidacloprid

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The shipping fees will be calculated before checkout

Goods Returned to Sender

In cases where goods are returned to the sender, such as non-collection, incorrect address, refusal, or carrier error, no restocking fee will be applied. The shipping charges for your order will be refunded only if VetSupply or the carrier is responsible for non-delivery.

Change of Mind Returns

Change of mind returns will be subject to a 10% restocking fee, and the shipping portion of your order is non-refundable.

We understand that returning a product can be frustrating, but we are unable to accept returns for change of mind under the following circumstances:

  • The product has been removed from its original packaging.
  • Labels or seals on the product have been tampered with or removed.
  • The product has clear signs of use, damage, or is soiled.
  • The product contains food or medication.
  • The end customer received the product more than 14 days ago.

Damaged or Incorrect Goods

Any goods that are sent incorrectly or arrive damaged will be replaced at VetSupply's expense. We will uphold our warranty obligations as defined under Australian consumer law. Please contact us regarding any warranty claims, and we will arrange pickup and replacement of the product in accordance with the manufacturer's warranty conditions.

We cannot accept warranty returns for pet accessories that have been damaged by an animal unless a manufacturing fault can be identified with the product. Such claims will be forwarded to the product manufacturer for investigation before accepting a return or replacement.

Returning a Product

Prior to initiating a change of mind return, please contact VetSupply. Goods should be sent to the following address:

Returns, 1/106-108, Station Road, Seven Hills, NSW 2147

Customers are responsible for the shipping costs associated with returning goods, except in cases where VetSupply has agreed to cover return postage costs due to an error on our part. Please note that VetSupply assumes no responsibility for loss or damage during the return transit.

Product refunds will be credited to the original payment method used for the purchase.

Cancelling an Order

Please get in touch with us promptly if you need to cancel an order, as orders cannot be refunded once they have been dispatched from our warehouse.

Seresto collar is an innovative, long-lasting flea and tick protection for dogs. The collar provides flea and paralysis tick protection for up to 8 months. Plus, it kills Brown dog ticks and controls bush ticks in puppies and dogs. Seresto Collar not only kills but also repels deadly paralysis ticks for 4 months.

Seresto Collar reduces transmission of various diseases carried by brown dog ticks that includes Ehrlichiosis, Babesiosis, Anaplasmosis for four months. Plus, it treats lice, treats and controls Flea Allergy Dermatitis and reduces the spread of life-threatening vector-borne diseases which are transmitted when ticks take a blood meal from your dog.

Seresto collar offers lasting flea and tick protection in puppies from 7 weeks of age. This easy-to-use collar is odourless and water-resistant.

"Now registered with an additional flea tapeworm infection prevention for dogs and a longer paralysis tick protection for 8 months."

Note: With this change there will be some packaging updates highlighted by overstickering existing Seresto stock. Not every stock, though, can be overstickered. Since the Seresto collar hasn't been altered in any manner to obtain the claim extension, all of the stock that is now in circulation effectively controls paralysis ticks for eight months and prevents flea tapeworm infection.

We understand that these adjustments might raise some concerns. Please refer to the FAQs under the More Info tab.

How does it work?

Seresto collar contains unique combination of imidacloprid and flumethrin. The active ingredients spread from where the collar contacts the skin, over the entire skin surface of your dog. Imidacloprid kills fleas and flumethrin kills ticks. The mode of action does not require fleas or ticks to bite and ingest the chemical. Hence, the dog is protected against flea bites. Existing ticks need to be removed as they cannot be killed immediately after collar application. Seresto is especially designed with a safety-closure mechanism for dog’s safety.

Salient Feature
  • Treats and prevents flea infestations for upto 8 months
  • Recommended for the treatment and control of Flea Allergic Dermatitis (FAD)
  • Controls Paralysis ticks and Bush ticks
  • Kills Brown-dog ticks
  • First line preventative treatment for Ehrlichiosis. Read more about Ehrlichiosis here
  • Reduces transmission of Anaplasmosis
  • Treats lice
Why Seresto flea and tick control collar for dogs?
  • image Effective for 8 months against fleas
  • image Effective for 8 months against ticks, including the deadly paralysis tick
  • image Kills and repels ticks
  • image Water-resistant*
    *See product label for further information.
  • image Odour-free
How does it work?
At first sight, Seresto might look like just another pet collar, but there's a lot going on beneath the surface. The collar slowly releases two active ingredients imidacloprid and flumethrin into the lipid (oily/fatty) outer layer of your dog's skin and fur. The collar creates an invisible layer of protection that kills fleas and repels and kills ticks that come into contact with your dog.
How to apply Seresto for dogs
Remove the Seresto dog collar from the pouch. Remove any remaining plastic connectors on the inside of the collar. Put the collar around your dog's neck and insert the loose end into the two loops ? cut off any extra length of collar, leaving about 2 cm of the loose end beyond the second loop.

Make sure it's neither too tight nor too loose. Ideally two fingers fit between the collar and your dog's neck.
It's an innovative collar that protects your dog from ticks for four months and fleas for eight months. This means your pets are protected for longer and you have less chance of forgetting to give them their protection.
Seresto's innovative technology enables it to release controlled doses of the active ingredients over a long period of time. The ingredients are transferred to your pet?s skin and coat, and spread across their entire body, keeping your dog protected from ticks for 4 months and fleas for 8 months.
Seresto contains two active ingredients: imidacloprid, which kills adult fleas, and flea larvae; and flumethrin, which repels and kills ticks. No other product has this combination of ingredients.
Seresto kills existing fleas on dogs within 24 hours after application. Once Seresto has been on your dog for 24 hours, reinfesting fleas are killed within 2 hours. Infestation prevention from new ticks starts within 48 hours after Seresto collar application. Reinfesting ticks are repelled and/or killed in as quickly as six hours (data on file).
Ticks may still get on to your dog's coat when your dog brushes past them, even if they are wearing a Seresto collar. The active ingredients work on contact, which means the tick needs to contact the fur to get exposed to the active ingredient. However, once they have climbed on, the ticks will be affected by the active ingredient and will fall off and die.
The vast majority of active ingredients are bound in the collar matrix. Even if your dog manages to eat the whole collar, only mild gastrointestinal upsets are expected. Although it is recommended that you seek veterinary advice, especially when the whole collar has been ingested. However, if your dog manages to get their own collar into his mouth it's likely that it is applied too loosely. Ideally two fingers fit between the collar and your dog?s neck.
It's safe for use on puppies from seven weeks of age.
No. It's even important to put it on without any delay to assure continuous protection of your dog.
No, it doesn't. Seresto is odourless, so there are none of the unpleasant chemical smells you usually associate with flea and tick collars.
No. Stretching the collar for activation is not necessary. Seresto's efficacy against fleas is reached within 24 hours of application and for ticks within 48 hours of application to your pet.
Seresto doesn't work this way, so there's no need to brush the collar anywhere on your pet. Simply put the collar around your dog?s neck and make sure you adjust it properly. The collar will do the rest.
We are not aware of mud having an impact on the release of the active ingredients in Seresto and hence its efficacy. A normal, small amount of dirt would not be expected to be an issue. There could be an impact if the mud is thick and creates a barrier between the collar and the coat of your dog. The Seresto collar has been extensively tested in real-life households, with outdoor dogs, with no reduction in efficacy. If the collar does get dirty, you can simply wipe it down with a moist cloth.
No, you shouldn't attach a leash to the collar, as the force of your pet pulling against it could potentially open the safety mechanism. Use your normal collar to attach to the leash. A normal collar can be used safely next to the Seresto collar. Seresto can be used safely with Seresto charms and a name tag can be attached to the buckle loop.
Seresto does not need to be removed when a dog goes swimming or is bathed. The active ingredients are contained in the collar matrix and are hydrophobic, so are not washed away with swimming and bathing. They spread through the naturally water-resistant layer of the dog's skin and hair and even if some of the active ingredients are partially washed off by bathing, Seresto will quickly replenish the active ingredients and the pet will be protected again.

It is recommended that a soap-free shampoo should be used when bathing.
Seresto is water-resistant*. It remains effective following the use of a soap-free shampoo with non-detergent ingredients (i.e. soap-free dog shampoo), swimming or exposure to rain.
Seresto is designed with a safety-release mechanism. In the unlikely event of your pet being trapped, the collar will widen or open, allowing for a quick release. The small dog collar has a two-step safety mechanism as it is additionally equipped with a predetermined breaking point.
Absolutely. Seresto can be worn alongside your dog's usual collar without compromising its efficacy. Always ensure that the Seresto collar is in contact with the skin (i.e. next to their normal fabric collar).
Sometimes dogs aren't used to wearing collars, so they might develop mild reactions such as scratching, redness and hair loss around the collar. These symptoms usually disappear within one to two weeks, without removing the collar, as your dog gets used to wearing it. In rare cases in dogs, application site reactions such as dermatitis, inflammation, eczema or lesions may occur and in these instances, a temporary collar removal may be recommended until the symptoms have disappeared. Please consult your vet if the symptoms persist or become more severe.

Also, make sure the collar is not too tight ? always ensure you can fit 2 fingers between your dog?s neck and the Seresto collar.
Puppies grow at different rates and we recommend checks of the collar daily or every 2nd day and readjustment if necessary. Watch the video above to see how to fit your Seresto collar properly, and always follow the guidelines that are provided.
This method of application hasn't been tested and it might have an impact on the level of protection your pet receives. For the best flea and tick protection, Seresto should be used all year round. However, if you?ve removed the collar only temporarily (e.g. during grooming), you can reapply it without any problems.
Used collars or any remnants should be disposed of according to the label.


  • For small dogs and puppies up to 8 kg require one Seresto for Dogs and Puppies up to 8 Kg.
  • Dogs over 8 kg require one Seresto for Dogs Over 8 Kg.
  • Remove collar from protective pouch immediately before use.
  • Adjust the collar around the animal’s neck without over-tightening. Leave at least 2 fingers space between the collar and the neck.
  • Pull collar through the loop and cut off any excess length extending beyond 2 cm.
  • Check periodically and adjust fit if necessary, especially when puppies are growing.

Key Benefits

  • Treats and prevents fleas for up to 8 months
  • Effectively controls paralysis ticks for up to 8 months
  • Prevent flea tapeworm infection through effective flea control
  • Control brown dog tick and bush tick for up to 16 weeks
  • Kills all life stages of brown dog ticks
  • Reduces transmission of Ehrlichiosis, Babesiosis, Anaplasmosis for four months
  • Destroys adult fleas on the dog and flea larvae in the environment, breaking the lifecycle
  • Helpful in the treatment and prevention of flea allergy dermatitis
  • Kills fleas and ticks on contact no need to bite
  • Reduces the risk of tick-borne diseases
  • Odourless, water-resistant and easy to use
  • Kills existing chewing lice


  • Keep out of reach of children.
  • For animal treatment only.
  • Read safety directions.
  • For external use only.
  • Do not allow children to play with the collar.
  • Do not open inner pouch until ready to use.
  • Wash hands after use.
  • Store at room temperature.
  • The safety of this product is not evaluated for pregnant and lactating animals.


  • No possible side effects noticed of using this product.

More Information

Target species Dogs
Mode of administration Topical
Active Ingredients Flumethrin
Manufacturer Bayer/Elanco
Brand Name Advantage


Q. Why has the claim for paralysis ticks changed from 4 months to 8 months?

Servo for Dogs previously made the claim that it could control bush ticks (Haemaphysalis longicornis), brown dog ticks (Rhipicephalus sanguineus), and paralysis ticks (Ixodes holocyclus) on dogs for four months. Recent research from two additional studies showed that Seresto was highly effective against paralysis ticks on dogs from months four through eight and that this was true over the course of several months. Seresto is currently approved for use on dogs for an eight-month period for paralysis tick control.

Q. Does Seresto eliminate all ticks on dogs for an entire eight months?

The claims to control bush ticks (Haemaphysalis longicornis) and brown dog ticks (Rhipicephalus sanguineus) on dogs have not changed in 4 months. The claims that tick-borne diseases such babesiosis, anaplasmosis, and ehrlichiosis are also still stand at four months.

Q. Seresto's claims of fleas—have they changed?

Since Seresto controls fleas on dogs and flea larvae in their environment for 8 months, the flea claims have not changed. Seresto now has a new claim that it can effectively manage fleas to prevent an infestation of the flea tapeworm infestation (Dipylidium caninum).

Q. Despite a banner I've seen that reads "8 months," the Seresto tin states "4 months." Will this collar work for eight months?

Yes. The extended claim for paralysis ticks will be highlighted by overstickering existing Seresto stock. Not every stock, though, can be overstickered. Since the Seresto collar has not been altered in any way to obtain the claim extension, all current stock now successfully controls paralysis ticks for a period of eight months. To control brown dog ticks or diseases spread by ticks like ehrlichiosis, the collar should be changed every four months.

Q. How long will the stickers remain on the tins?

The stickers will be used as a temporary measure until new packaging is ready and are a way to let buyers know about the new claim as soon as feasible. Elanco estimates that the revised tins will go on sale in the middle of 2023.

Product Reviews
Reviews: 125
5 Star 4 Star 3 Star 2 Star 1 Star


Killed both fleas and tick



This is doing the job fine



This one is great


Easy peasy

This works out well for my child



Seresto collar has to the easiest solution I've used against fleas and ticks.

Have A Question?
Q: My dog is over 8kg but small collar fits him size wise will it cover him

A: Seresto collar for small dogs is suitable for dogs weighing up to 8 kg and the large collar suits dogs over 8kg.

By, on Jan 31, 2024
Q: I have a giant breed - Neapolitan Mastiffs. Females 60-70 kgs and males 70-85 kgs. Would this product fit them.

A: Seresto Collar is safe to use on all dog breeds. Please consult with a veterinarian before using the treatment on your pets.

By, on Aug 21, 2023
Q: My doggie is 8.2 kgs, is the blue collar safe enough, I don’t really want to put that big red collar on her .Thank you.

A: Seresto Collar (Blue) is recommended for dogs under 8kg. For dogs over 8lbs dogs, it is indicated to use Seresto Collar Red. Please consult with a vet if you still wish to use a small collar on your large dog.

By, on Aug 14, 2023
Q: Can I kiss my dog if she use this Collar?

A: As long as you don't lick the active ingredients of the collar, it is fine to kiss a dog wearing the collar. Please consult with a veterinarian for further information on this.

By, on Aug 14, 2023
Q: How long should the Seresto Flea Collar be used for?

A: Seresto Collar for dogs is known to provide protection against fleas and paralysis ticks for 8 months.

By, on Jul 17, 2023

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