PAT McGRATH LABS DARK STAR MASCARA XTREME BLACK 13mL FULL SIZE; BRAND NEW SEALED BOX. Retails for $34. Pat McGrath Labs Dark Star gravity-defying mascara delivers instant volume, multidimensional length and weightless lift in a single stroke. Gel-hybrid formula glides on evenly and effortlessly, with pitch-black micro-fine crème pigments that transform with luxurious volume and exaggerated effects.