Medicube TXA + Niacinamide 15% Glow Facial Serum is a high-performance brightening serum designed to improve skin tone, clarity, and radiance. Powered by Tranexamic Acid (TXA) and a potent 15% Niacinamide complex, this lightweight serum helps reduce the appearance of dark spots, pigmentation, and uneven skin tone while strengthening the skin barrier.