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.

Lack of hydration is one of the main causes of the appearance of signs of aging. Dehydrated skin loses its radiance, becomes thinner and therefore more vulnerable to external aggressions.