MEDICUBE Azelaic Acid 16 BB Calming Serum Mask 25ml is a Korean sheet mask for troubled, acne-prone skin. It delivers 16% Azelaic Acid Complex alongside Niacinamide and Pantothenic Acid to calm redness, refine pores, and fade dark spots. Centella Asiatica and Panthenol soothe irritation while the mask's essence hydrates deeply. Suitable for sensitive and reactive skin. Removes when the sheet turns transparent. Order COD from koreanshopbd.com.