Think of the outer layer of skin as a brick wall, with skin cells as the bricks and lipids as the mortar. Ceramides make up roughly half of that mortar and are essential for keeping moisture in and irritants out.
The body makes its own ceramides, but production slows with age. Cold weather, dry air, harsh cleansing and certain skin conditions can also weaken the barrier, leaving skin dry, tight, rough and more easily irritated.
Ceramides in skincare help replenish the lipids in the barrier. They work best alongside cholesterol and fatty acids, in roughly the same balance as in the skin itself. In ingredient lists they often appear as ceramide NP, AP or EOP, and phytosphingosine is a building block skin can use to make ceramides.
How to use: Ceramides are gentle and suit every skin type, especially dry, mature and sensitive skin. Use them morning and evening, ideally in a cream after your serum.
Good to know: Ceramides are a smart choice when you use acids or retinol, as they help keep the barrier strong.
