Medicube Azelaic Acid 16 Calming Serum is a Korean skincare serum formulated with a high concentration of 16% azelaic acid complex. It is designed to calm irritated skin, reduce acne, improve skin texture, and fade post-acne marks. It also contains ingredients such as niacinamide and pantothenic acid (vitamin B5) to help brighten the skin, strengthen the skin barrier, and maintain hydration