In a human being hair plays a very important role in the overall standard of his living life. Hairstyles are made of three main layers which protect the skull skin of the head. Hair is also protecting skin from the sunrays and fromchlorine of the water which affects the skin of the skull. Different hairstyles can be made to fit for the human face so that everyone may look beautiful and handsome. Hair also hides some of the cuts or spots in the forehead of human faces. Apart from humans, talking about the animals especially dogs, cat and others like cows hair protects them from various climate coldness and hotness. It protects and hides their any wounds and cuts from exposure to the air and environment. Dirt and dust can make their skins affected to injuries which is cured and protected by hair in their whole body. So hair is very important part of the body in humans as well as animals.