First, the environment is relatively dry, do not pay attention to hydration, and the skin is short of water;

Second, the internal fire is too strong, the yin fire burns too much, and the toxins in the body accumulate too much;

Third, this part has used cosmetics and skin care products such as hormones or lead and mercury before, and after a period of time, the harmful elements such as glass appear dry skin. In the future, we should pay attention to using moisturizing and safe things, such as mung bean paste, herbs and mung bean masks, which can both moisturize and detoxify.