There loss of skin density is an integral part of natural aging. It manifests itself as a reduction in the thickness, firmness, and elasticity of the skin. This phenomenon is mainly due to:

• Decline in production of  collagen and elastin : These proteins provide the structure and elasticity of the skin. Their reduction leads to sagging skin and a loss of volume.
• Atrophy of subcutaneous adipose tissue : This thins the skin and makes it less plump.
• Slowing down of cell renewal : With age, the skin regenerates more slowly, which contributes to skin thinning.

L'impact direct de la pollution sur la peau se traduit par une perte de souplesse, une déshydratation accrue, et l'apparition de taches pigmentaires. À long terme, elle accélère également le vieillissement prématuré, provoquant des rides et un relâchement cutané.