Mary&May Niacinamide Vitamin C Brightening Mask is a sheet mask that brightens dull skin, balances sebum, and helps reduce dark spots for a clear and radiant complexion. Key Benefits Brightens Skin: Niacinamide and Vitamin C work together to lighten darkened and tired-looking skin. Balances Sebum: Helps regulate oil production, reducing skin troubles and shine. Reduces Melanin: Suppresses melanin formation and minimizes oxidized melanin for even skin tone. Eco-Friendly Design: Large-capacity case allows easy daily use and reduces waste. Safe Ingredients: All components are EWG green grade-certified, except fragrance. How to Use Apply the mask sheet to your face, leave it on for 10-15 minutes, remove, and gently tap for better absorption.