WellDerma PDRN Exosome Hydro Fitting Mask Sheet is a micro-hole hydrogel sheet mask infused with Salmon PDRN (Sodium DNA), Milk Exosomes, Houttuynia Cordata Leaf Water (864,495ppm), Niacinamide, and Collagen Extract, designed to revitalize, brighten, and deeply hydrate tired skin through a cooling, tight-adhering gel that turns transparent upon absorption.