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Seresto™ flea and tick collars for dogs and cats

Seresto flea and tick collars for dogs and cats effectively kills fleas and repels and kills ticks^ for 8 months through contact with your pet’s skin, hair, and dander.


Seresto also helps break the flea lifecycle by protecting your treated pets immediate surroundings against flea larvae development, reducing the chances of a flea reinfestation.


Seresto can also be used as part of a treatment strategy for Flea Allergy Dermatitis.


Seresto also treats lice infestation in dogs for 8 months.

Why choose Seresto for your pet?

  • Kills fleas and ticks icon for Seresto™ flea and tick collars.

    Kills fleas and repels and kills ticks^ through contact for 8 months.

    Helps break the flea lifecycle by protecting your treated pets immediate surroundings against flea larvae development, reducing the chances of a flea reinfestation.

  • Seresto™ 8 months protection icon.

    Seresto provides 8 months of flea and tick protection for your pet.

  • Seresto™ water resistant icon.

    Water resistant* - no need to remove the collar on your pet before swimming or bathing.

  • Seresto™ easy to use icon.

    Seresto is the easy to use flea and tick collar which is odourless.

Seresto, Elanco and the diagonal bar logo are trademarks of Elanco or its affiliates.
Seresto is registered under the ACVM Act 1997, No. A010750.
Elanco New Zealand, 106 Wiri Station Road, Manukau, Auckland 2104.
www.mypetandi.elanco.com/nz I 0800 446 121. © 2026 Elanco

*The product is water resistant and does not need to be removed during bathing. However, prolonged or repeated exposure of the dog to water or excessive washing can accelerate depletion of the imidacloprid reservoir which may lead to a gradual decline in efficacy.
Stanneck D, Kruedewagen EM, Fourie JJ, et al. Efficacy of an imidacloprid/flumethrin collar against fleas, ticks, mites and lice on dogs. Parasit Vectors 2012; 5:102- European SPC (status 11/2019).

^For more detail refer to product label.

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© 2026 Elanco or its affiliates.