Skin dryness, though hereditary like skin oiliness, also results from the aging process. As all body activities
slow down, oil gland activity slows as well. Dry skin tends to be dehydrated. Its lack of oil diminishes its ability to retain moisture since oil in the skin
acts as a natural barrier against moisture loss. Dry skin is usually very fine, overly delicate and thin. Lack of sufficient oil secretion deprives the skin of sufficient "glue" to retain cells in the corneum layer. As a result, dry skin has fewer cells in the corneum layer than oily skin. In dry skin, pores are almost invisible. The skin also tends to wrinkle easily and is often filled with tiny superficial lines.
Dry skin conditions are usually chronic and necessitate long-term therapy that forms a layer on the surface of the skin and reduces moisture loss. In addition, a program of good skin nourishment and lubrication with appropriate night creams is highly recommended. Some cases may be seasonal and only require treatment during the dry, winter months. For effective control of dry skin, products must
be used regularly as directed.