Cutaneous rough type: skin metabolism is not smooth, too much old waste cutin can not be updated, so that the cuticle arrangement is uneven and rough, making the skin dull.
Water-deficient skin: dry skin, easy desquamation and peeling, and insufficient water intake. If the skin is short of water for a long time, it will make the skin look dull.
Lack of sleep: staying up late or lack of sleep often leads to poor metabolic function and insufficient oxygen in the blood, which makes the skin lose its sense of transparency and present a dull complexion.
Sunlight exposure type: frequent shopping and outdoor activities, without proper sun protection measures, the skin produces too much melanin to avoid being damaged by ultraviolet rays, which will lead to this dullness.
Oily skin type: the skin is rich in oil secretion, forehead, cheeks, nose, T.
Oily and bright areas are easy to attach dust and dirt, which leads to dull skin due to air oxidation.
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