No 2 Unifier Maxi Tone and No 4 Dark Spots Corrector (DSC) SerumNo 2 Unifier Maxi Tone and No 4 Dark Spots Corrector (DSC) Serum Fades Dark Spots: A facial serum to banish dark spots and stop new ones from forming the natural way. With Clinical Effects Dark Spot Corrector, you get a two pronged approach that helps slow down hyperactive melamine making cells and gently slough away dead cells on the skin's surface. One of its kind dark spot serum that allows new, evenly pigmented cells to take their place. Plant