COSRX Ultimate Nourishing Rice Overnight Spa Mask 60ml is a leave-on sleeping mask made with over 68% Oryza Sativa Rice Extract — one of the highest concentrations in any Korean overnight mask. It works through the night to hydrate, brighten, and nourish the skin while you sleep. Niacinamide fades dullness, Arginine supports collagen, and Sunflower Seed Oil seals in moisture until morning. Wake up with softer, clearer skin. Order from koreanshopbd.com — COD available!