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Radiant and regular for many years, the complexion begins to grow dull and lacklustre with age. This slow process can be accelerated by external elements.
A stable colour
Skin colour, inherited from parents, remains stable throughout a lifetime. Only tanning is able to make it change at any time.
Phenotypes are the collection of observable characteristics of an individual. At birth, each of us can be classified into one of six phenotypes of human being and this lasts our whole life. The classifications below take into account skin, hair and eye colour.
0 = albinos. The body does not make any melanin at all, the protective pigment which gives colour to skin and hair.
1 = redhead. Skin gets sunburnt, but does not tan. Produces too little melanin.
2 = blond with light eyes. Skin gets sunburnt then tans lightly.
3 = light brown hair. Skin gets sunburnt then tans.
4 = brunette. Tans without getting sunburnt.
5 = Mediterranean, mixed race. Tans without getting sunburnt.
6 = black. Tans without getting sunburnt.
The passage of time affects the quality of the complexion, but not the colour of the skin.
A loss of evenness
The evolution of the complexion over the years is due to the skin cells which start to function less well. They are produced less rapidly and some accumulate at the surface. The blood circulation slows down, which leads to a reduction in the amount of oxygen and nutrients carried to the skin. Less oxygenated and nourished, it loses its even appearance.
Moreover, there are numerous elements which affect the evolution of the complexion and they don’t act in the same way in each person. The evolution of the complexion is therefore difficult to predict.