What it is: MAC 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. What it does: This unique lip gloss gives your lips a high-gloss, glass-like finish or a subtle shine. Each contains the brand’s new Oilshine Moisture Complex, which is a luxurious blend of babassu, coconut, apricot and jojoba oils to help soften and condition the lips.