Skin ageing
Skin ageing is clinically defined as a loss of elasticity in skin tissues (loss of the ability to regain its shape after stretching) a change in skin texture (thickening or thinning) and the appearance of visible anomalies on the surface (small veins, brown spots, etc).Intrinsic ageing – a natural phenomenon which affects all the organs of the body - is traditionally distinguished from extrinsic ageing, which is caused by a number of factors which speed up the natural ageing process: Exposure to UV, smoking, hormonal deficiencies, etc. (www.sante-medecine.commentcamarche.net)