The eyelash extension application is non-invasive and pain-free - the extensions are applied using special adhesive and your eyes are closed during the whole process. They are applied to the eyelash and not directly onto the eyelid skin. Having eyelash extensions should not damage your natural lashes provided they are applied correctly, extensions that are suitable for your own lashes are selected, and they are treated with care. The lashes with the extensions attached will shed naturally over a period of 6 weeks and re-generate.