Intrinsic ageing
Genetically programmed ageing. It is responsible for approximately 10% of the ageing process, primarily by slow irreversible tissue degeneration.
Stratum corneum
The outer most layer of the skin often referred to as the 'horny' layer.
Skin types
Skin types can be classified into four categories - normal, dry, oily and combination. They are determined by the functionality of the oil glands. These are generally inherited traits but can also be influenced by environmental attributes.