The Round Lab Birch Juice Moisturizing Mask is a deeply hydrating sheet mask that leverages the power of Birch Sap and Hyaluronic Acid to provide intense moisture and revitalization. Birch sap, rich in amino acids, minerals, and antioxidants, helps maintain the skin's moisture balance while reducing inflammation and soothing irritation. The addition of Hyaluronic Acid forms a hydrating barrier that prevents moisture loss, ensuring long-lasting hydration. This mask's 100% cotton sheet allows for optimal absorption of the nourishing ampoule, delivering refreshing hydration without irritation.