MAC Mariah Carey Extra Dimension Skinfinish MY MIMI Gold Highlighter Rare. What it is: M·A·C and the legendary Mariah Carey collaborate for a limited-edition collection wrapped up in luxurious packaging detailed with silver glitter and champagne gold accents plus Mariah's signature. Who it's for: All skin types. What it does: This liquid-powder highlighter with prismatic reflections is designed to sculpt and highlight your face for a luminous, well-defined finish. Its creamy formula lasts up to 10 hours and it's embossed with an illustration of Mariah's face.