No adhesive needed! Ardell® has now designed magnetic lashes that are reusable and easy to apply. To Use: Place the upper lash on top of your natural lash line and the under lash beneath you natural lash line. Small thin magnets on each lash band will connect the upper and under lashes together. To Remove: Carefully slide top and bottom magnets away from each other. Do not pull. Store lashes in tray when not in use.