There are several important reasons for skin dehydration, which one do you belong to? 1, skin water and oil imbalance The skin has the ability to self-regulate water and oil balance. When the skin regulating ability is out of balance, skin problems will occur, such as oily skin dehydration caused by dryness, mainly because the skin lack of water factor; dry skin dehydration caused by dryness, mainly because the skin lack of oil to lock moisture. 3, dry environment caused by any skin type, the skin may be air conditioning, ultraviolet rays and harsh environment to take away moisture, thus becoming abnormally dry. 4.Excessive cleansing Choose a strong cleansing ability cleansing products, or excessive and frequent exfoliation, will lead to the skin surface more and more fragile, making the original normal skin texture gradually dry. 5, lack of water instant nourishment in the hydration at the same time, often easy to ignore the nourishment and oil this link. Because the oil has a strong water lock, if there is no this layer of protective film, then the water will soon be evaporated by the environment.