There are different types of face shapes, but generally we can assume that a young face has the proportions of an inverted triangle. If the face tapers from the top towards the chin, it looks young. Over time the proportions change, leading to upside down triangle face shape in old age.
The perception of the face as old is also influenced by defects such as discoloration, broken capillaries, wrinkles, thinness and laxity of the skin. The skin loses its elasticity and hydration as hyaluronic acid disappears and collagen is degraded. All structures undergo a gradual process of reconstruction, starting with the craniofacial bones, which become flat and no longer support other tissues. Fat tissue also disappears. Its presence in the face is very desirable since it adds volume. Hence, in order to restore youthfulness to the face, one must act deeper to recreate what has disappeared. In addition to the natural processes taking place in our body, solar radiation also has a huge impact on the course of aging.