Thanks Keirhardie27 for your question! It’s completely understandable that this is bugging you, especially when it plays "hide and seek" depending on the lighting. Whether Botox will work depends on why the line is there. The line I see is a subtle, vertical shadow right in the center of your forehead. Because your face is relaxed in this photo, this looks less like a "frown line" (which usually appears lower, between the eyebrows) and more like a slight volume indentation or a natural anatomical variation. Since this line is visible while your face is resting, Botox alone may not completely "sort it out." Botox works by relaxing the muscle movement that creates a wrinkle. If the muscle is already relaxed and you can still see the dent, the Botox won't have much to "relax." However, if you find that you subconsciously contract your brows or scowl throughout the day, Botox could prevent the line from getting deeper over time. Some people have a natural, slight gap between the two halves of the forehead muscle (the frontalis). This can create a vertical dip right in the center. If you are a side or stomach sleeper, your forehead can "fold" against the pillow, which eventually creates a static line. You should see an Expert physician who can examine you and your vertical line and see which type of line you have on your forehead. Hope this was helpful! Best wishes, Dr Ali Sajjadian