The accumulation of old horniness in the skin will make the skin thicker and rougher, and the pores will become thicker. Because the skin can't absorb water and maintain ingredients smoothly, it will become dull and dry, accelerate the stimulation of oil secretion, and the pores will become bigger again. In addition, with the growth of age, the skin gradually loses its elasticity, and there is a lack of supporting structure around the hair follicle, which makes the pores appear larger; A dry skin environment with external oil will also make pores bulky.