What Makes Up Your Skin Barrier?

Your skin has a remarkable foundation – the outermost layer known as the skin barrier. This layer plays a vital role in keeping skin healthy, hydrated, and protected.

 

A simple way to picture it is as a perfectly built brick wall.

The Bricks: Cells called corneocytes. They are the tough, protective building blocks of the wall.
The Mortar: Between these cells is a natural cement made from lipids such as ceramides, cholesterol, and fatty acids. This “mortar” locks the structure together, sealing in moisture and keeping irritants out.

This living wall works in two important ways, all day, every day:

• Locks in hydration – helping skin stay soft, plump, and comfortable.
• Shields against irritants – protecting the deeper layers from environmental stressors such as pollution and allergens.

When the mortar thins (due to factors like harsh weather, stress, or unsuitable skincare) small gaps can form. Moisture escapes, leaving skin dry or tight, and irritants can enter, causing sensitivity or redness.

 

When the lipid mortar is kept strong through gentle cleansing, protective barrier products, and by avoiding harsh irritants, the barrier stays sealed and resilient. This keeps skin comfortable, healthy, and better able to defend itself, creating the perfect foundation for lasting skin wellness.