New in Box. Lash thickening mascara that helps strengthen and thicken the appearance of lashes . What it does: Lash-loving ingredients nourish and condition for naturally fuller-looking, more beautiful lashes that appear longer, fuller and stronger. The formula features pro vitamin B5 that hydrates lashes by drawing moisture in, and castor oil rich in essential triglycerides that promote lash smoothness.= How to use: Wiggle the lash thickening mascara wand into the base of your lashes and comb upwards to the tip of your lashes. Layer until your desired lashes are achieved.