Ceramides are lipids naturally present in the outermost layer of the skin. They are essential components of a healthy skin barrier.
Think of skin cells as bricks and some of the surrounding lipids, including ceramides, as part of the material that helps hold the barrier together.
Skincare products containing ceramides can help support the skin barrier and reduce excessive water loss. This makes them particularly useful in moisturizers formulated for dry or compromised skin.
Ceramides are not primarily exfoliating or brightening ingredients. Their main value is supporting the skin's protective barrier and helping maintain moisture.