Medicube Age-R Glutathione Glow Serum 30g is a glow-boosting brightening serum powered by glutathione, niacinamide, vitamin C derivatives, hyaluronic acid, and nourishing plant extracts that work in synergy to target hyperpigmentation, dull tone, and uneven texture. This serum penetrates deeply to fade stubborn dark spots, strengthen skin brightness from within, and improve overall clarity without irritation. Its lightweight yet concentrated texture hydrates intensely, smooths roughness, and protects the skin from environmental stress and oxidative damage. Over time, the complexion becomes more balanced, radiant, and visibly energized with a healthy glass-skin glow.