[Dr.G] RTX Into Serum Vitaminshot 50ml[Dr. G] RTX Into Serum Vitaminshot 50ml This brightening serum contains 5% Niacinamide and Vitamin C Exosome to provide face and strong brightening care. Blemish control and brightening effect with visible results. How to Use After cleansing, take an appropriate amount and gently apply along the skin texture avoiding the eye area and lips. Lightly tap for better absorption. Ingredients Water(Aqua Eau), Butylene Glycol, Glycerin, Niacinamide,