NaturVet Skin & Coat Plus Catnip Soft Chews for Cats, 50 Soft Chews are designed to give your cat healthy skin and a shiny, glossy coat. The main ingredients in Skin & Coat Soft Chews, omega-3 and omega-6 fatty acids, come from all-natural fish oil. These fatty acids add moisture to the skin and help protect against skin allergies.