Clinically, dilated pores are indicated by micro depressions, and skin appears like «mandarin peel» and slightly grubby.
Dilated pores are the openings of the follicle channels, through which sebum flows, and we have thousands of these on our faces.
Their size is genetically determined. When they’re visible, it is because they’re full of sebum and impurities, which can lead to black heads and spots. Their diameter tends to increase with age and sun damage.
Sebum production depends on age. During infancy, the pores are practically invisible as there is hardly any secretion. At puberty, and during various periods of life with significant hormonal production, secretion increases and the pores become more visible, especially in greasy skin.
Equally, they expand with age and slackening skin, occupying a greater area of the skin. Their diameter doubles from the age of 25 to 50. They are found on the forehead, the nose, the chin and cheeks.