DentaLife Dog Chews are scientifically proven to help reduce tartar build-up in just 28 days. And unlike some dental chews, Dentalife contain no chemical cleaning ingredients. DentaLife use wholesome natural ingredients with a unique shape chewy porous texture to scrub right to your dog#s gumline. All they have to do is chew! Composition:Cereals (60% extruded corn flour, 5% wheat flour), glycerol, minerals, yeasts, meat and animal derivatives (1.1%*), oils and fats. *equivalent to 4% rehydrated meat and animal derivatives (4% chicken) Additives:Nutritional additives:IU/kg: Vitamin A: 8500, Vitamin D3: 570, Vitamin E: 60mg/kg: Calcium iodate anhydrous: 2.2; Manganous sulphate monohydrate: 12.5; Zinc sulphate monohydrate: 280; Sodium selenite: 0.31 Antioxidants. Analytical constituents:Moisture: 14.5% Crude ash: 4.5%Protein: 7.0% Crude fibres: 0.7%Fat content: 2.5% Calcium: 1.1% Sizes2-7kg Extra Small Dog7-12kg Small Dog12-25kg Medium Dog25-40kg Large Dog 1 Stick per day. Fresh drinking water should always