Korean skincare for dark spots usually pairs a brightening serum with daily sunscreen, since sun exposure can make marks look darker. Browse serums, face moisturizers, sheet masks, ampoules and eye creams from TIAM, Mommy Care, Mediheal, Pyunkang Yul and Numbuzin, including vitamin and niacinamide formulas and a TIAM B3 Niacin Sunscreen. Use new products consistently and wear sunscreen daily.