The Pyunkang Yul brand serum has a mild, acidic formula enriched with Centella asiatica and tea tree extracts. Ultimate Calming Solution Ampoule was developed to soothe irritations and restore natural balance! It also contains powerful antibacterial agents such as Amur cork tree bark extract, as well as ceramides and hyaluronic acid to moisturize and strengthen the moisture barrier. Ceramides strengthen the protective barrier against moisture evaporation and provide moisture, so that the dermis becomes smooth and supple and fewer fine lines and wrinkles appear! The low molecular weight ensures optimal absorption and improves elasticity.