Description ISDINCEUTICS Pigment Expert is a depigmenting corrector serum in ampoules that combines Pigment Block, glycolic acid and dipotassium glycyrrhizate to prevent and reduce the size and number of dark spots, promoting a more even, rejuvenated skin tone. HOW TO USE? Apply one ampoule in the morning as the first step of your facial routine, after cleansing, to face, neck and décolleté avoiding the eye contour. Pair with SPF during the day.