Fits Best Cat Hairball Control Gel 100g Prevent hairballs and support healthy digestion for your littlest felines with Vet's Best Cat Hairball Relief digestive aid. They'll love our Classic Chicken Flavor Recipe, and you'll love not having to clean up after them. Key Benefits Helps remove and prevent hairballs, in addition to supporting digestion. Product Information This specific blend of natural botanical ingredients, promotes good digestion and reduces the formation of hairballs in your cat's stomach. Our classic chicken flavor is a favorite of felines and provides safe support for a healthy digestive system.