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The hair follicle is a complex, pouch-like structure under the skin that is essential for the growth and development of hair on the human body. Deep within its core lies the papilla, enriched with capillaries that supply vital nutrients. The surrounding matrix is a vibrant site of cell division where keratin is produced to form new hair.
These cells become the hair shaft, the part of the hair that visibly grows out of the skin, especially from the pores. This shaft consists of dead, keratinized tissue and is what we perceive as hair. Its base, the hair root, sits firmly in the follicle and is nourished by sebum glands that produce a natural oil to lubricate the hair and skin.
Another important component, the erector pili muscle, enables the hair to stand upright – a phenomenon that causes goose bumps when cold or emotional reactions occur. The condition and functionality of the hair follicle has a direct impact on hair quality, density and thickness, influenced by factors such as diet, hormones and general health. In addition, hair follicles play a key role in skin renewal and healing by serving as a source of stem cells.
