Benefit cosmetics How does that saying go? Oh, yeah: “The brow pen is mightier than...like, anything else.” With 0.1 mm brush tips, Mighty Fine Brow Pen is the FINEST triple-tip brow pen out there – seriously, we checked. It instantly fills in brows and mimics the look of natural hair for a full, defined look that lasts and lasts. Shake it up & flick onto clean, dry brows, for your own MIGHTY Fine moment LTKBeauty LTKWatchNow LTKFindsUnder50