Our reflection in the mirror change over the years and the most striking change is dark lines, or folds of sagging skin around the mouth or mouth line. Technically these lines that run from your nose to the corner of your mouth is called the Nasal Labial Fold Line.
There are several major events occurring in the middle of the face which causes and facial age your face. We loose collagen (the supporting structure) of the skin and because of that the loss of elasticity of the facial skin. The lost of elasticity allow the skin to sag and pulled downward by gravity. As the lax of skin falls, skin folds are formed over the lips and mouth creating the mouth lines.