Anua Niacinamide 10% + TXA 4% Serum is a brightening and dark spot correcting serum designed to improve skin tone and reduce hyperpigmentation. It combines 10% niacinamide and 4% tranexamic acid, along with other ingredients like arbutin, hyaluronic acid, and botanical oils, to target dark spots, acne scars, and uneven skin tone. The serum also aims to hydrate and soothe the skin, preventing new pigmentation from forming.