The climate that no longer corresponds to real seasons, lack of humidity and changes of temperature, atmospheric pollution outdoors and indoors, stress and poor eating habits: these are the elements that make the skin less and less able to react and protect itself from aggression.

The horny layer of the epidermis, normally consisting of keratin cells that are flat and overlap to form a compact, uniform barrier, when subject to aggression is unable to reorganize by itself and the skin becomes dry, dehydrated and fragile.