Hills pd canine derm defense is a specialist dry dog food for adult dogs suffering from dermatosis or excessive shedding this dietetic kibble contains a special bioactive complex with phytonutrients to support healthy skin and coat this nutrient complex works to strengthen the skin barrier and to help to prevent or reduce reactions to environmental allergies the ingredients of the dry kibble also have a soothing and nourishing effect on your dogs skin and coat this tasty dry dog nutrition