The humidity on the skin surface will affect the secretion and diffusion of sebum. When the skin surface humidity is high, the emulsification and diffusion of sebum will become slow. When the skin is in a dry environment for a long time, sebaceous glands will be overactive and produce abnormal oil.

2. Dietary factors

Dietary factors will affect the secretion of sebaceous glands. Eating greasy food, spicy food and high-sugar and high-calorie food will increase the secretion of sebaceous glands.

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Ways to improve oily skin:

1, wash your face with warm water

Washing your face with cold water for oily skin will cause the pores of facial skin to shrink, so that the oil stains and sweat in the pores can't be washed out in time. The consequence of this is to make the skin pores bigger. The correct way is to use warm water. Not only can the pores be fully opened, but also the natural moisturizing oil of the skin will not be excessively lost. Choose warm water when cleansing, and don't use a towel when cleansing. Choose soft facial tissues or beauty towels.

2. Avoid food with high oil content in daily diet.

Foods with high oil content will stimulate our skin to produce more oil. It is suggested to eat more fruits and vegetables, such as mango, tomato, kiwi fruit, etc., which not only supplements essential vitamins for human body, but also helps to improve skin quality and make skin shiny and delicate.

Baidu encyclopedia-oily skin

People's Network-Do these things well every day to improve oily skin and control oil production.