Defurr-UM is a combination of ingredients which gently lubricate the system giving a mild laxative E that removes the hairball and reduces future blockages. The Defurr-UM paste coats the swallowed hair and stool and allows it to pass through the digestive system. Defurr-UM also contains vitamin E. Defurr-UM helps to assist passage of swallowed fur through the gut to avoid the formation of hairballs.IngredientsMalt Syrup, Petrolatum, Glycerin, Natural flavouring, Acacia Gum, Caramel, Sorbic Acid (a preservative), Methylparaben (a preservative), Propylparaben (a preservative), a-Tocopherol Acetate (vitamin E)