Dry skin is the result of a lack of production of oil in the sebaceous glands and it feels scratchy, tight, itchy, rough and often flaky. It doesn't look much better, either!
If you have dehydrated skin and work in an air conditioned or heated room your skin will really suffer. Even to the point of cracked skin and fissures.
You may even look a little wan with a dull looking complexion.
This type of skin needs protection and care. Avoid all the harsh chemical products and use only gentle, balancing potions based on natural products like essential oils and hydrating herbal mixtures