Everything Else . The cells of your hair are living to begin with, but emerge from the skin as dead but durable strands.
Hair is produced by living cells in the hair follicles at the base of each hair.
There, below the skin surface, cells are added to the hair fiber at the root. At this stage the hair cells are still soft and pliable. The cells are squashed together in the follicle and are molded by its shape, which determines whether the hair will be straight or curly. Then as more and more cells are added, the hair fiber is pushed out and keratinized, or permeated with a hard substance like your fingernail. The cells become very stiff and die.