The COSRX The Hyaluronic Acid 3 Serum is a deeply hydrating serum designed to deliver intense, long-lasting moisture. Formulated with a potent **3% concentration of hyaluronic acid**, it effectively draws moisture into the skin, providing a plumping effect that smooths fine lines and enhances skin elasticity. This serum is ideal for those seeking to boost hydration and achieve a dewy, radiant complexion, making it perfect for both dry and combination skin types.