Skin aging is a natural process that all people experience. Both intrinsic and extrinsic factors are part of the skin ageing process.
lntrinsic: uncontrollable factors
- Natural ageing due to the passing of time (chronoageing)
- Variable genetically determined rates
Extrinsic: controllable factors (to varying degrees)
- Repetitive muscle movements (mechanical ageing)
- Lifestyle components (diet, sleeping position, overall health)
Signs of skin ageing include wrinkles, loss of volume, and loss of density. As the skin ages, cell turnover slows, meaning collagen and elasticity is gradually lost. The overall collagen content of the skin’s surface is known to decrease by approximately 1% each year from the time you are about 20 years old.
The ageing process is expressed by roughness and dryness apparent in the epidermis (uppermost layer), loss of elasticity, dullness, and fine lines and wrinkles in the dermis (secondary layer), and hollowed cheeks and deeper wrinkles in the subcutis (bottom layer). Skin ageing happens to all people and emotional distress can be a result of the ageing process.