Labo Transdermic 4 Clarifying Ultra Enlightening Serum is an intensive clarifying enlightening transdermic care for dull, listless skin. Sodium Ascorbyl Phosphate has a strong clarifying effect due to inhibition of the tyrosine synthesis; Oligopeptide-68 is a whitening peptide contrasting the pigmentation process; Acetyl Cysteine is a precursor of Glutathione which has a strong anti-tyrosinase activity; Dimethylmethoxy Chromanyl Palmitate clarifies the skin reducing melanogenesis and increasing skin brightness; Tocopheryl Acetate prevents cellular oxidative stress.