Formulated with Advanced Anti-spot Ingredient: Formulated with intensive, comprehensive skintone correcting technology including our powerful anti-irritant boosting compound and advanced anti-spot ingredient, 4-Butylresorcinol, Kojic Acid, Lactic Acid, Salicylic Acid, and Morinda Citrifolia extract, this potent serum is the essential core of the Enlighten regimen. For Day and Night Use: By day, Dark Spot Corrector Serum helps defend against the damage that can cause future spots. Instantly, this dark spot remover amplifies skin's natural luminosity. By night, our dark spot corrector works naturally with skin's rhythm and begins to significantly reduce the look of dark spots, sun spots, post acne marks, dullness and redness. Targets Various Types of Spots: This dark spot corrector serum thoroughly targets various types of spots, from those that are typically dark and defined to the scattered smaller spots that are blurred and widely distributed over the face. The quick-absorbing texture does not have a sticky feel, and leaves skin beautifully bright and translucent looking.