COSRX The Hyaluronic Acid 3 is a hydrating serum containing 3% hyaluronic acid that helps retain moisture and strengthen the skin barrier. This concentrated formula delivers deep hydration for plumper, healthier-looking skin. Key features: • Contains 3% hyaluronic acid • Retains moisture effectively • Strengthens skin barrier • Provides deep hydration • Creates plumper, healthier skin This hydrating booster serum comes in a 20ml bottle with a dropper applicator for precise dispensing. The formula is designed to be lightweight yet potent, helping to maintain optimal skin hydration levels while supporting the natural moisture barrier. The 3% hyaluronic acid concentration is clinically proven to deliver effective moisturizing benefits.