Understanding Ageing Skin and Barrier Degradation – A Scientific Breakdown

Most people think ageing skin is just dryness and wrinkles. It’s not.

It’s a breakdown of the skin’s structure and function at a cellular level.

There is a lot of misinformation around ageing skin, especially when it comes to what is actually happening beneath the surface.

This educational post breaks it down properly.

Rather than focusing on trends or marketing language, this content takes a scientific approach to explain how the skin barrier changes over time, why ageing skin behaves differently, and what is really responsible for dryness, sensitivity, and reduced resilience.

Inside, you will learn:

• What the skin barrier actually is and how it functions
• How intrinsic and extrinsic ageing impact the structure of the skin
• Why lipid depletion plays a major role in barrier decline
• The relationship between TEWL, hydration, and barrier integrity
• How enzymatic activity, pH, and NMF influence ageing skin
• Why repair processes slow down over time
• What this means from a formulation perspective

This is designed for formulators, skincare brands, and anyone wanting a clear, scientifically accurate understanding of ageing skin without the confusion.

No overclaims. No marketing fluff. Just real skin science.