Medicube TXA Niacinamide 15 Serum 30mlMedicube TXA Niacinamide 15 Serum Advanced Brightening & Dark Spot Care Reveal clearer, brighter, and more even toned skin with Medicube TXA Niacinamide 15 Serum, a high performance Korean serum that targets dark spots, uneven tone, and rough texture. Formulated with a potent 5% Tranexamic Acid (TXA), 10% Niacinamide, and Arbutin, this triple action brightening serum works to: Fade hyperpigmentation and stubborn dark spots Refine skin texture for a