Ordinary lubricant eye drops simply provide moisture which can evaporate quickly from the surface of the eye. While Soothe XP also provides advanced lipid restorative which provides a barrier to tear loss for relief that lasts up to 8 hours. Expect temporarily blurred vision upon application, as Soothe XP eye drops seal in moisture. * Relief that lasts up to 8 hours * Restores moisture & prevents tear loss * Contains Restoryl, which restores the lipid layer of tears *. 5 fl. oz. (15 m L) bottle