Lips are probably the most important part of the lower face in conveying expression.

A sensual or appealing lip will have a combination of good volume, symmetry, an attractive shape and a well defined edge. Some people have naturally thin lips and this can suggest scorn or disapproval. As we age, lips tend to lose volume and the edge becomes thinner and less defined. This leads to a crankier, more aged look and as volume loss proceeds vertical lines form above the lip and lipstick will often bleed into these.

Lip augmentation and rejuvenation can give very nice aesthetic results. It is important to have realistic expectations, avoid the temptation to overtreat and to have an experienced practitioner that appreciates natural balance and harmony. Sometimes bigger lips just don't look right on certain people and greater emphasis should be placed on shape and definition.