Lash glue.

What the gurus are saying

The experts who tested it praise how the tacky set time lets people adjust lash placement and build coverage in layers, making it easier to focus on the outer corners and lash ends where coverage often falls short. One thing to keep in mind: the glue can be tricky to remove from skin, so those applying it may want to dab onto the back of the hand first rather than straight from the tube, even though it adds an extra step.