Skin ageing is characterised by features such as wrinkling, structural and functional changes in extracellular matrix components such as collagens and elastin, laxity, and rough-textured appearance.
Extrinsic vs Intrinsic Ageing Factors
Extrinsic factors include:
Exposure to UV radiation accounts for about 80% of facial ageing
The accumulation of abnormal elastic tissue deep in the dermis
Intrinsic ageing is the decreased ability of cells to retain water and the degeneration of elastin, fibrillin, collagen.
Intrinsic factors include: