Mono Eye Shadow What it is: Essential eyeshadow shades pressed in single compacts. What it does: Yves Saint Laurent OMBRE SOLO shades the eyelids with a matte, satiny, or iridescent veil of endlessly adjustable and long-lasting color. The exceptional smoothing effect reveals the radiance of the colors for a wonderfully luminous look. Optical smoothing pigments create the illusion of smooth, even lids. What else you need to know: The formula is wonderfully long-lasting. Size: 0.05 oz