Sentry HC petromalt fish flavored hairball 4.4-ounce. Active Ingredients: Mineral Oil (10.8%), Petrolatum (32.4%). Other Ingredients: Acacia Gum, Acidified Calcium Sulfate, Barley Malt Syrup, Caramel, Fish Oil, Glycerin, Potassium Sorbate, Sodium Benzoate, Thiamine HCI and Water.