What is the name of the basal layer of the skin?

The basal layer of the skin is known as the stratum basale. This is the deepest layer of the epidermis and plays a crucial role in skin biology as it is where new skin cells are generated. The stratum basale consists of a single layer of cuboidal or columnar cells, primarily keratinocytes. These cells are responsible for the production of keratin, a protein that helps protect the skin and retain moisture.

Additionally, the stratum basale contains melanocytes, which produce the pigment melanin, contributing to skin color and protection against UV radiation. Its position at the base of the epidermis is essential for the continual renewal of skin cells, as older cells move upward through the epidermis, eventually forming the outermost layer.

Understanding the structure of the stratum basale is fundamental for estheticians, as it aids in comprehending skin health, repair processes, and how treatments can affect the different layers of the skin.