What is the matrix in hair and what does it do?

The matrix is the innermost layer of the hair shaft, and it is responsible for the hair's strength and elasticity. It is made up of keratin, a type of protein that is also found in nails and skin.

The matrix is located at the base of the hair follicle, and it is where new hair cells are produced. These cells are then pushed up the hair follicle and eventually emerge from the scalp. As the cells move up the follicle, they harden and become keratinized. This process gives hair its strength and durability.

In addition to keratin, the matrix also contains other important proteins, such as trichohyalin and filaggrin. These proteins help to protect the hair from damage and keep it moisturized.

The matrix is a vital part of the hair follicle, and it plays a key role in hair growth and health. Without a healthy matrix, the hair shaft would be weak and brittle, and it would be more susceptible to damage.