COSRX The Hyaluronic Acid 3 Serum is a deeply hydrating serum that contains 3% concentrated hyaluronic acid, amino acids and Ceramide NP that will hydrate the skin and strengthen its barrier. COSRX The Hyaluronic Acid 3 Serum has a light texture that is easily absorbed by the skin. The serum contains 3% hyaluronic acid, the skin's own sugar substance, which improves the moisture content in the upper skin layers and adds a uniform, moisture-saturated radiance. Hyaluronic acid prevents dryness and restores the moisture balance, which will reduce redness and irritation. Hyaluronic acid is particularly good at filling lines of dryness, so that they become almost invisible and the skin has a moisture-saturated and youthful radiance. The serum is rich in natural NMF (Natural Moisturizing Factors), among other things in the form of an amino acid complex that protects your skin against loss of moisture/water. In the list of ingredients you will also find Ceramide NP. Ceramides are lipids that are naturally found in our skin and of which up to 50% of the skin barrier is made. Ceramides help the skin to keep "tight" so that moisture and nutrition do not disappear from the surface and protect against external stress that causes irritation. With a weakened skin barrier, your skin will become dry and irritated, and therefore ceramides are added, which keep your skin protected and healthy. The serum is particularly suitable for those with dry skin who want to strengthen the skin barrier, prevent dry skin/irritation and redness.