Always handle the Adhesive Tray from the sides and avoid touching the top, which may leave residual skin oils on the surface. Remove an Adhesive Tray from the box and buff the surface using a dry Cosmetic Sponge to remove any dust or moisture that may have settled on the tray. If necessary, use a Flex Tip™ Applicator to remove any foreign matter from the wells. It is recommended to use a new tray for every application to ensure optimal performance of your adhesive.For optimal adhesive performance, use a fresh drop of adhesive every 15 minutes. Note: Xtreme Lashes adhesive trays are designed to be disposable. Reusing the tray causes small scratches to form on the surface that are not visible to the naked eye that trap dust, debris, and residual adhesive, which reacts with the adhesive in the well. This prevents the adhesive from maintaining its optimal adhesion properties, which will not secure the strong bond needed for an ideal attachment, resulting in premature lash extension loss.