📖 what

What is the stratum corneum?

Human BodySkin

Quick Answer

The stratum corneum is the outermost layer of the epidermis made of dead, flattened skin cells. It forms a protective barrier against water loss and environmental damage.

The Full Story

The stratum corneum is often described as the skin’s primary barrier. It consists of corneocytes embedded in lipids, creating a tough layer that helps keep moisture in and irritants out. This layer is constantly renewed as new cells rise from below and old cells shed from the surface. Its condition affects skin dryness, sensitivity, and protection from pathogens. Because it is so important, many skincare and dermatology treatments aim to support or modify this barrier.

Key Facts

1.Outermost skin layer
2.Made of dead flattened cells
3.Prevents water loss

YouTube Angle

Suggested video title for this topic:

"Your skin’s outer shield against the world"