Dry Skin
DRY SKIN
The skin acts as a barrier. It keeps water and nutrients from escaping and, at the same time, stops foreign bodies and radiation from penetrating the body. The skin transmits sensations, helps maintain body temperature, and protects against trauma. In addition, it produces pigments and vitamins.
The skin is made of a thin layer, called the epidermis, which covers a thicker layer, called the dermis. It is constantly regenerating itself, and this process takes place at the base of the epidermis. In order to remain soft and flexible, the epidermis needs water. If epidermal humidity falls below 10 percent, the epidermis dries up and becomes fragile. Irritating substances can then penetrate the skin easily, causing swelling and chapping. Sometimes it feels itchy.
Dry skin is mostly caused by a lack of moisture rather than a lack of natural oils. The lower part of the legs, the hands, and forearms are most at risk.