Egg white can not only whiten skin, but also make skin tender and remove dead skin. This is because it is rich in protein and a small amount of acetic acid and lysozyme. Protein can enhance the skin lubrication, acetic acid can protect the skin slightly acidic, lysozyme can sterilize. Both can prevent the skin from being infected by bacteria. In addition, egg white also has the functions of clearing away heat and toxic materials and enhancing skin immune function.