The Cosrx Hydrium Triple Hyaluronic Moisture Ampoule is a deeply hydrating serum formulated with three molecular weights of hyaluronic acid to deliver moisture to multiple skin layers. It also contains panthenol and allantoin to soothe and strengthen the skin barrier, making it ideal for dry, dehydrated, or sensitive skin types. The lightweight, fast-absorbing texture layers effortlessly under other skincare products without pilling or stickiness. Regular use helps plump fine lines, improve skin elasticity, and maintain long-lasting hydration throughout the day. This ampoule is especially beneficial for those in harsh climates or using active ingredients that cause dryness, as it replenishes moisture while calming irritation. Fragrance-free and non-comedogenic, it suits even reactive skin needing gentle yet effective hydration.