Thank you for viewing! I'm also selling this with other sets, so please let me know before purchasing. This serum contains 15% azelaic acid to regulate excessive sebum production and soothe sensitive skin, leaving a refreshing feel. It also contains glycyrrhizic acid to suppress skin inflammation, effectively calming redness caused by external irritation. In addition, totarol, which is said to be effective in calming acne in Korea, and ANUA CICA 7 COMPLEX™, Anua's unique skin-conditioning ingredient, balance the skin's oil and water levels, promoting healthy skin condition. This serum is highly recommended for those concerned about acne, skin irritation, and excessive sebum. Retail Price: ¥3,300