Does not burn like drugstore drops, but does not last all day and I often need more than one drop. I like it much better than most plain drops, but recently switched to a drop with a lipid layer.....this makes eyes blurry for about five minutes, but then lasts all day or night long.
Great for people suffering from dry eyes, especially during months where allergies seem to sky rocket. Allergy medication dries my eyes out so I supplement with this product. It works great and I have no issues since using.