Why does skin become dehydrated?
Skin dehydration is rarely linked to a simple lack of water. It is most often linked to a disruption in the biological mechanisms that enable the skin to manage water. Several factors can alter this ability.
Age
Over time, cell renewal slows down. Skin cells take longer to regenerate and the structure of the epidermis becomes less regular. The skin then retains less water.
The enzymes responsible for skin renewal also function less effectively if the cellular environment lacks water or if the skin's pH is unbalanced.
The environment
Cold weather, pollution, temperature fluctuations, and air conditioning are factors that significantly disrupt skin hydration. They weaken the skin barrier and accelerate water evaporation.
Skincare habits
Certain overly aggressive cleansers, or failure to prepare the skin before applying cream, can limit the skin's ability to absorb and retain water.
That's why hydration begins even before applying the cream.