The skin is your dogs largest organ and it plays an important part in your dogs well being skin has many functions it is a protective barrier which prevents the body from drying out and shields it from harmful bacteria and external injuries it stores vital fats and vitamins and is also an important part of the bodys sensory system so it is important to keep your dogs skin healthy dry itchy or irritated skin greasy fur or dandruff are all warning signs that something is amiss and should