Epidermis

Skin Structure

표피

The outermost layer of the skin, acting as a protective shield against external irritants and water loss.

What kind of layer it is

The epidermis is roughly 0.05 to 1.5mm thick depending on the area. Cells are pushed upwards from below, gradually flatten and finally become dead cells that are shed. This process is called keratinisation, and in healthy skin it generally repeats on a cycle of about four weeks.

Good to know

The epidermis has no blood vessels, so it receives nutrients from the dermis beneath it. Melanocytes, which produce pigment, sit in the lower part of the epidermis, so with frequent sun exposure pigment changes can appear first at the epidermal level.

This entry is general medical information provided to aid understanding. It does not guarantee the results of any specific treatment or product, and diagnostic and treatment methods and their outcomes may differ depending on each person's condition. Please confirm the details through a medical consultation.