Numbuzin No.5+ Glutathione Vitamin Concentrated Mask is a sheet mask that brightens dull skin, minimizes dark and red marks, and locks in moisture for a radiant, refreshed complexion. Key Benefits Brightens Skin: Liposomal Glutathione, Vitamin C, and Niacinamide help even out skin tone and restore radiance. Reduces Dark & Red Marks: Targets pigmentation, redness, and dullness for a clearer appearance. Hydrates & Soothes: Allantoin and Hyaluronic Acid keep skin moisturized and calm. Highly Concentrated: Ampoule-packed formula ensures effective delivery of active ingredients for visible results. How to Use After cleansing and toning, apply the sheet mask. Leave on for 10–20 minutes, then remove and gently pat remaining essence for full absorption.