Fillers are great for augmenting the lip, but they will not "lift" the lip in the same capacity as a lip lift. In fact, the use of fillers can sometimes exaggerate a long upper lip and give the appearance of duck lips. If the space above your upper lift is too long and you inject fillers, the filler will push the lip out instead of up. You can get a good idea if you measure the distance between your upper lip and the bottom of the nose. If that distance is longer than 1.1 cm, or if you can’t see the upper teeth with the mouth slightly open at rest, you would benefit more from a lip lift than fillers. Be sure to consult with a board certified plastic surgeon who can help you determine what would yield the best results based on your specifics and your goals. Best wishes!