rtificial lashes are synthetic or natural fibers, such as polyester, that are applied to the eyelids for cosmetic purposes to make the natural lashes appear longer, thicker, and fuller. They come in two main forms: false strip lashes, which are a single strip glued along the natural lash line and removed at the end of the day, and eyelash extensions, which are individual fibers applied to each natural lash for a semi-permanent effect that lasts for several weeks.