While some people continuously have dry skin, others only have dry skin during certain seasons. Either way, dry skin can be itchy and uncomfortable. Not to mention, dry, ashy skin is unattractive and can make people feel self conscious. Some people experience dry skin no matter how much moisturizer they use.
You want to do everything that you can to keep your skin looking great. This means you will need to go beyond moisturizing and concentrate on rehydrating and revitalizing your skin.