HAIRS

Hair grows from hair follicles, located in the dermis just below the epidermis. These follicles cover almost the entire surface of the skin, except for the lips, palms of the hands, and soles of the feet. Hair formation begins in the hair matrix, located at the base of the follicle.

The cells in the hair matrix multiply and move towards the surface. As they quickly dehydrate and die, these cells form a dense and hard structure that makes up the hair shaft.

The color of hair is determined by melanin, a pigment that is also responsible for skin color.