Look this up and see what you think for your cats. It is gentle on the gums and does work. John Paul Pet Tooth & Gum Pet Wipes for Dogs and Cats, 2 in 1, Infused with Peppermint Oil, Safely Clean Plaque, Cruelty-Free, Paraben Free, Made in the USA, 45 Count, (JPPW05)
$8.98 in stock on Amazon.