LANEIGE water bank blue hyaluronic serum is a powerful skin hydrating serum that comes in a sleek 25ml bottle. Its key ingredient, hyaluronic acid, is known for its ability to retain moisture and keep the skin plump and youthful. The serum has a light blue tint, representing the brand's water bank line, which is specifically designed to provide intense hydration to the skin. The compact size of the bottle makes it perfect for travel or on-the-go use. With its advanced formula and attractive packaging, this serum is a must-have for anyone looking to keep their skin hydrated and glowing.