Logic Orozyme Chews are palatable beef and pork rawhide chews. Feeding one a day after the dog’s last meal will help prevent the build up of plaque which can lead to tartar, gum decay and bad breath. By combining a natural LPO – Enzyme System with lysozyme and lactoferrine the active properties of Logic Orozyme Chews considerably enhance the mouth’s natural defences. The chews are made from collagen, a substance that naturally enhances the mechanical action of chewing on teeth and gums to assist the removal of plaque.