NUMBUZIN No.6 Deep Sleep Mask Serum 50ml~ Offers intensive moisturizing and firming effects of mask sheets to treat extremely dry, flaky, dull skin. ~ Improves the skin condition overnight to ensure a revitalized complexion for the next morning. ~ Hydrates the skin from the inside out with Glacier Water instead of Purified Water, restores radiance and firmness of the skin at once. ~ Its highly concentrated watery texture forms a moisture barrier on the skin and leaves a non sticky finish. ~