The skin is made up of water, ceramides, proteins and lipids which exist in perfect balance. When this balance is properly maintained, nutrients and water reach all layers.
Water comes from the skin layers and goes to the surface to hydrate the other skin cells; but when water comes into contact with air, it evaporates, causing the skin to dry out.
Other causes of dry skin include genetic patterns, irritants, certain dermatological procedures, inflammation, sunburn, medication, weather, and skin conditions such as eczema.
In addition, products that are too drying, drastic changes in pH and excessive washing can disturb the water balance of the skin.
Experts recommend moisturizers containing active ingredients such as retinol to stimulate cell activity while hydrating the body to prevent skin from becoming weak.