It contains of Glutathione, Niacinamide, Vitamin C and more. As you guys know how great Glutathione and Niacinamide for dull skin. It will maintain our dull skin get brighter and hydrated at the same time. It also help our texture skin smoother and soft. The thing is how it also help to hydrate my dry skin all day and all night without feeling greasy at all. The pipette also so easy to use, since the texture is so watery we have to be more careful to use the pipette or your beloved product will spilled out. You won't meet any spilled product around the neck of the glass just like another serum with bigger pipette. It also recommend you to use is day and night. I usually use three drops for all of my face, I use my palm to apply it onto my skin, because it is a bit hard to drop it directly onto my skin face. I do not find my skin get brighter, or maybe I have to use it more, maybe two or three months usage would give a better result.