Hairball is a breakthrough formula to support skin tone, elasticity and hair health. Hairball focuses on factors in cats such as healthy skin, GI tract and urinary tract health issues. Cats love these delicious chicken liver flavored chews. For animal use only. Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately. Store in a cool, dry place. About the formula: Lecithin supports nail, hair and skin health as well as skin hydration and resiliency. Healthy skin directly influences how well the hair will grow, function and shed. Deficiencies of Lecithin can lead to loss of skin elasticity, dryness, scaliness, increased fur matting, discoloration of hair, lack of hair re-growth and increased shedding. Omega 3 & 6 fatty acids along with lecithin have been added to support skin hydration, resiliency and hair health. These fatty acids not only provide fats for skin and coat condition, but they also support the GI tract. Biotin is needed for healthy hair and skin. Zinc is involved in keratin and collagen production, which are important for hair and skin health. It also helps maintain healthy skin tissue and hair follicles, and is required for fatty acid metabolism. Zinc is required for fatty acid metabolism. Cranberry powder supports the urinary tract. Psyllium is a soluble fiber that supports GI tract health and function.