Medicube Azelaic Acid 16 BB Calming Serum is a targeted treatment serum formulated with a potent 16% concentration of Azelaic Acid. This powerful ingredient works to visibly reduce redness, calm irritation, and combat blemishes, making it an ideal choice for those with sensitive or reactive skin. The lightweight, fast-absorbing serum helps to even out skin tone and improve the appearance of post-acne marks. A consumer should use it to effectively soothe flare-ups, manage breakouts, and achieve a clearer, more balanced complexion.