Our Niacinamide Brightening Serum contains nicotinamide, glutathione and hyaluronic acid. It can effectively improve dull skin tone and uneven skin tone, deeply hydrating and moisturizing, and make skin glow. Its use method is very simple: after cleansing and toning, press 1-2 pumps of essence evenly apply to the face skin, and gently massage with your hand until absorbed. It can effectively reduce facial blemishes, lighten fine spots, refine pores, improve dry skin, and replenish moisture for skin.