The forehead occupies the upper third of the face, this element captures the light by beautifying the look and the face.
We do not always have a perfect forehead. Aesthetic imperfections in the forehead may be genetic (young subject) or age-related (elderly).A youthful forehead is slightly curved, whilst older subjects have a wider, flatter forehead.
As the forehead muscles move and work, their contraction makes horizontal lines appear, the skin slackens, the forehead become higher and the eyebrows descend.
Ageing of the frontal bone changes the contours of the forehead. A youthful forehead has a convex curve in both senses, vertical and horizontal. The curves change with age. In a vertical sense, starting at the hair, the curves form a little curve, then a hollow and again curve out at the eyebrow arcade.
The foreheadthus tends to take an S form. The same thing happens in the horizontal sense with a curve at the sides of the head, then a hollow and again a curve in the central part. This is the ‘skeletisation’ of the forehead.