Common Causes of Dry Skin
Winter weather. In general, skin is driest in winter, when temperatures and humidity levels plummet. Harsh conditions and dry air can leave your skin parched.
Frequent bathing. The combination of hot water and soaking can strip your skin of its protective oils. Frequent swimming, particularly in heavily chlorinated water can also cause drying effects on the skin.
Harsh soaps and detergents. Many soaps and detergents strip moisture from your skin. Use of hand sanitizers with high concentration of alcohol also dehydrate the skin.
Central heating and air-conditioning. Central heating systems, space heaters and fireplaces all reduce humidity causing drying of the skin.
Sun exposure. Sun has drying effects on skin, and its ultraviolet (UV) radiation penetrates the epidermis and depletes the skin's supply of natural lubricating oils.
Age. As you get older hormone levels change which can leave the skin thin and lacking in moisture
Diet. Skin cells are wrapped in a protective bubble of lipids (fats) that help keep them soft, plump, and flexible. Including adequate amounts of fatty acids in your diet is essential to maintain this protective wrap.
Irritants. Certain fabric fibers like wool can irritate the skin making it dry and itchy.
Not drinking enough water. It is recommended to drink 2 liters of water every day to remain hydrated. If the body is not adequately hydrated the skin will lose moisture and become dry.