Bold, intense volume meets the biggest brush ever from CoverGirl, for a blast of lush, volumized lashes that last up to 24 Hours! LashBlast 24HR gives you bold, look at me lashes that will get you noticed around the clock! Bold, intense volume that lasts up to 24 hours. LashBlast power, hour after hour!. Big, bold, look-at-me lashes that last. The latest from the LashBlast collection.