The layers of the skin are like soil in a garden: if all the different layers of soil are hydrated with water & nurtured with food & sun, flowers grow properly. But, if the foundation is not nourished properly & dehydration sets in, all the layers are affected. In the skin, surface dryness is more of a subcondition. It just affects the outermost layer of skin and its usually the byproduct of using the wrong products, especially cleansers. Stay hydrated. Dehydration can cause one to feel ill and stresses the body’s organs. Sodas, alcohol and beverages with caffeine cause our bodies to lose more fluids than we take in. Lack of water is the number one cause of daytime fatigue. Even mild dehydration can slow the metabolism and cause difficulty focusing.