Benefit Roller Lash Curling Mascara, no longer need an eyelash curler with the Benefit Roller Lash mascara! This mascara grabs every lash and keeps the curl for up to 12 hours! The special hook 'n roll brush contains small pins that grab the lashes from the roots and curl them to the tip. Apply one layer for a subtle effect or 2 layers for an intense curl. The formula contains provitamin B5, which is known for its nourishing effect.