Cheristin Flea Topical for Cats Cheristin Flea Topical is a flea treatment specifically formulated for cats. Easy to apply, quick-drying, and non-greasy, it is gently delivered by a small applicator with a rounded tip and starts killing fleas within 30 minutes. Cheristin's low-volume dose is gentle enough for all cats and kittens eight weeks of age and older that weigh 1.8 pounds or greater. The active ingredient, spinetoram, received a 2008 Presidential Green Chemistry award for low environmental impact on the agricultural industry. Features: Formulated specifically for cats For cats and kittens eight weeks and older weighing 1.8 lb. or greater Great for multi-cat households Fast-acting Easy to apply Item Specifications: Ingredients: Active: Spinetoram 11.2% Other Ingredients: 88% 6 Dose 2633385 P05933 727804333850