6-week
Cheristin
Cats · Health & Supplements
Cheristin
Cheristin Flea Treatment for Cats, 6 Doses
6-week
Best for: Multi-cat homes and small cats
A low-volume topical flea treatment for cats that starts killing fleas within 30 minutes and protects for up to six weeks. One dose size fits cats and kittens over 1.8 lb and 8 weeks.
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What we likeFast-acting Up to 6 weeks per dose One size for all cats over 1.8 lb
Keep in mindFleas only Some cats dislike the application
Our in-depth look
Who it's for
Homes with several cats of different sizes, and kittens over 8 weeks.
Who should skip it
Cats with skin conditions — ask your vet first.
Tips
Separate cats until the dose dries so they can't groom it off each other. Follow FDA guidance on flea and tick products .
Questions owners ask
How long does it last? Up to six weeks.
Is it safe for kittens? For kittens over 8 weeks and 1.8 lb.
Written by the StyloPaws team · Last reviewed October 9, 2026
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