SK-II Cellumination Essence hydrates and refines the surface to boost skin's natural glow and to help diminish the appearance of discoloration for a more even tone. It conditions and refines for a skin surface with more even texture and transparency that boosts light transmission within the surface. More light transmission creates a healthy-looking glow and makes the look of discolorations such as age spots have a less obvious contrast to natural skin color. It contains concentrated SK-II Pitera that helps lead to improvement in overall skin appearance. It permeates quickly into the skin and gives a light and smooth feeling when applied.