Cosrx The Vitamin C 23 Serum is a brightening face serum for all skin types. A high-performance antioxidant enhancer is ideal for preventing early signs of aging. With a high concentration of 23% pure vitamin C, it is hypoallergenic and offers a range of benefits. This serum helps diminish acne scars and hyperpigmentation while brightening dull skin. It also helps firm and plump the skin, visibly reducing fine lines and wrinkles. The Vitamin C 23 Serum is the perfect solution to combat dull skin, uneven skin tones, dark spots and hyperpigmentation, as well as early signs of aging, giving skin a youthful and radiant appearance.