NWT (NEW IN BOX) MAC STUDIO FIX 24-HOUR SMOOTH WEAR CONCEALER NW30 MEDIUM BEIGE WITH ROSY UNDERTONE FOR MEDIUM SKIN 0.24 FL. OZ. MAC Studio Fix 24-Hour Smooth Wear Concealer is a lightweight fluid concealer with a wand applicator that offers all-day comfortable wear with medium-to-full buildable coverage and a natural matte finish.