Hello there, Xeomin is not a filler. Xeomin is a neurotoxin that is used to soften or stop muscle movement in the areas injected. By doing so it can cause a smoothing affect on wrinkles caused by movement. Filler is a gel-like substance injected directly into or below the skin to lift, fill, soften, hydrate tissue, and correct volume loss/wrinkles. For the area you are concerned with, I will often do a multi-treatment approach. -I recommend medical-grade skincare to encourage cell-turnover, hydration, and collagen production. This will soften the appearance and depth of fine lines -I recommend a small amount of neurotoxin in the upper lip to stop dramatic pursing. This will reduce the movement causing the lines. -I recommend treating the area with non-invasive collagen and elastin stimulators. Lasers, Broad Band Light, and micro needling will all help to heal/rejuvenate this area from the inside out. -Lastly, any fine lines that are left should be easily correctable with filler. I prefer to do filler last in this area, since only a small amount can be used to avoid looking fake or overdone. The most long-lasting, most natural results will be seen when all of these are utilized. Most patients will utilize a combination of these treatments. Hope this helps. Sarah RN BSN