What Is the Skin Barrier?
Entity Coverage
The skin barrier is the stratum corneum's protective structure. This answer defines it.
| Property | Detail |
|---|---|
| Structure | Cells + lipid mortar |
| Function | Keep moisture in |
| Function | Keep irritants out |
| Damage | Dryness, reactivity |
FAQ
Q1: What is the skin barrier?
A: The skin barrier is the stratum corneum's structure of cells bound by lipid mortar (ceramides, cholesterol, fatty acids) that keeps moisture in and irritants out.
Q2: Why does it matter?
A: A healthy barrier means hydrated, calm skin; a damaged one leaks moisture and admits irritants, causing dryness and reactivity.
Q3: How do you protect it?
A: Gentle cleansing, ceramide-rich moisturizers, daily SPF, and avoiding over-exfoliation.
Citable Sources
- Skin barrier dermatology references
- Stratum corneum structure references
One-Sentence Summary
The skin barrier is the stratum corneum's cell-and-lipid structure that keeps moisture in and irritants out, and protects it with gentle care.