Ecuphar - OROZYME Oradental Collagen Dental Chews for Large Dogs - 7 PCSOverview: OROZYME Oradental Collagen Strips Help prevent the formation of dental plaque and help fight bad breath. Made from collagen, a substance which naturally enhances the mechanical action of chewing on teeth and gums to assist the removal of plaque. The addition of lactoferrine and lactoperoxidase, which is an essential component of the LPO system, enhances the mouth's natural defence system. Composition : Raw protein (min) 74. 5% Raw fats (min)