1. Barrier Restoration: Strengthening the Skin’s Protective Layer
The skin barrier, also known as the stratum corneum, plays a central role in maintaining skin health. It acts as a physical and biochemical shield, preventing water loss and blocking the entry of harmful substances like pollutants, irritants, and microorganisms. When the barrier is damaged—due to harsh skincare products, environmental exposure, or underlying skin conditions—it can lead to dryness, sensitivity, inflammation, and delayed healing.
How to restore and support the skin barrier:
- Ceramides: These are essential lipids naturally found in the skin. Ceramide-based creams or moisturisers help replenish depleted lipids, restoring barrier function and improving hydration.
- Fatty acids and cholesterol: These lipids, when used in combination with ceramides, help reinforce the structure of the skin barrier and restore its normal function.
- Occlusive agents: Ingredients such as petrolatum, squalane, shea butter, and mineral oil form a protective layer on the skin's surface, reducing water loss by preventing evaporation. These are especially helpful in very dry or compromised skin.
- Barrier-friendly practices: Avoiding harsh soaps, over-exfoliation, and alcohol-based products helps prevent further barrier disruption.
A healthy skin barrier improves water retention, reduces sensitivity, and provides better protection from external irritants.