Contains glutathione and vitamin that help brighten, as well as soothe and hydrate skin. Glutathione *Contains 100ppm: This is a water-soluble crystalline polypeptide found in living cells or yeast that blocks melanin pigment and is a powerful antioxidant. Tranexamic Acid: This is an organic acid substance used as a freckle inhibitor. It inhibits the production of tyrosinase-stimulating component (prostaglandin), which forms the melanin pigment, and is effective for relieving freckles and acne. Vitamin C (Ascorbyl Glucoside): A pure vitamin C ingredient that helps prevent oxidation and brightens dull skin to make it look radiant.