Poor cleansing with harsh soaps, cleansers and abrasive scrubs can contribute to dehydrated skin. Make sure you’re cleansing regularly with a good cleanser, suitable to your skin type. Many cleansers contain acids to help skin renewal process, which may not be good for your skin type. Overuse of certain products, such as benzoyl peroxide, hydrogen peroxide and retinoic acid can cause skin damage. Limit how often you use these products to avoid dehydrated skin. Your skin does not require a lot of exfoliation. If you over-exfoliate, your skin can become dehydrated quickly. Your skin will also become dehydrated if it lacks moisture. Make sure you are using good-quality moisturizers, prescribed by qualified skin therapist, on your skin.