Hills prescription diet canine zd mini has been formulated by veterinarians with hills hydrolyzed protein system that eliminates intact animal protein and reduces the chances of your dog having an adverse reaction to their food that develops into a skin condition it is filled with important ingredients that help to repair and protect your pets skin including proteins that repair damaged skin omega 3 and omega 6 that nourish the skin and a high antioxidant formula that supports healthy immun