Sleeping up face is full of oil, common causes are facial sebaceous glands secretion, serious skin dehydration, often stay up late endocrine disorders, long time use of oily skin care products, etc.. If you belong to oily skin, facial oil secretion, caused by sleeping up facial skin oil, especially adolescence is more serious, it is recommended that usually use light salt water to wash the face, oily skin dehydration, sleeping up facial oil secretion will be more serious, need to timely replenish water, balance the water and oil in the skin, can effectively alleviate the situation of facial skin oil. If you usually stay up late often leading to endocrine disruption, it is also easy to cause facial oil. If women use oily cosmetics for a long time, resulting in the accumulation of oil in the skin, sleeping up will also appear the situation of oily skin. If your face is prone to oiliness, it is advisable to pay attention to facial cleaning, pay attention to facial moisture replenishment, and avoid staying up late for a long time.