In K-Beauty, hyaluronic acid is one of the most celebrated ingredients for achieving the signature dewy, glass-skin complexion. Rather than simply adding moisture to the skin, it works by attracting and retaining water, helping to keep the skin deeply hydrated, plump, and healthy-looking. Frequently found in toners, essences, serums, and moisturisers, hyaluronic acid is suitable for all skin types and is often layered with other hydrating ingredients as part of the K-Beauty philosophy of building long-lasting hydration while supporting a strong, balanced skin barrier.