Numbuzin No.6 Deep Sleep Mask Serum is a moisturizing face serum for dry skin. An overnight treatment that regenerates dry, dull, and flaky skin, providing intense hydration and a firming effect. Thanks to its unique formula, enriched with glacier water, it helps restore the skin's natural radiance and greater firmness while working deeply during the night. The serum's lightweight, watery texture creates a barrier that locks in moisture without leaving sticky residues, giving you a fresh and revitalized look upon waking. No.6 Deep Sleep Mask Serum is perfect for chi looking for an intensive treatment that renews the skin while you rest, for a healthy complexion and visibly brighter skin in the morning.