Breakthrough shade-sensing technology starts out white and adjusts to right. Finally a concealer that takes the guesswork out of finding your perfect shade, instantly adjusting to the color of your skin. Conceal minor imperfections on face and dark circle Breakthrough shade-sensing technology starts out white and adjusts to right. Finally a concealer that takes the guesswork out of finding your perfect shade, instantly adjusting to the color of your skin. Conceal minor imperfections on face and dark circle.