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How does Seresto work

Seresto is not just any ordinary collar! 

Using an advanced polymer matrix, the active ingredients are stored within the collar itself. Utilising the natural oils in your pet's skin, Seresto steadily releases the active ingredients from head to tail, keeping them protected for 7-8 months. Seresto kills fleas and kills and repels ticks, no biting required1.

The videos here show how Seresto works for both dogs and cats.

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What is Seresto?

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  1. Mehlhorn et al. Parasitol Res (2001) 87:198-207, information is regarding mode of action and is not intended to relate to speed of kill or to imply parasites can be completely stopped from biting.

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PM-UK-25-0207

Date of review: March 2025

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