Eyelash extensions enhance length, thickness and fullness. They come in different shapes and sizes so you can choose how natural or full you want your lashes to look. The glue is medical grade and is safe for your eyes as well as your natural lashes. Each lash is attached one by one to a strong, healthy lash so you do not need to worry about losing your natural lashes in the process. The bond is designed to last until the loss of your natural lash. Life of your lashes are anywhere between 3-4 weeks with fills around 2-3 weeks. Your at home care will determine the life of your lashes.