What is the primary function of the hair bulb?

The primary function of the hair bulb is to facilitate hair growth. The hair bulb is the enlarged structure at the base of the hair follicle where hair production occurs. Within the hair bulb, specialized cells called keratinocytes produce keratin, the protein that makes up the hair strand. The bulb is also surrounded by a network of blood vessels, which provide the necessary nutrients and oxygen to support the rapid cell division techniques essential for hair growth. The health and function of the hair bulb are crucial for the overall growth and quality of hair. While it is true that the hair follicle relies on nutrients for optimal functioning, the primary role of the hair bulb itself is directly tied to the process of hair growth.