A It difficult to assess exactly why your injector injects up high on your forehead without a picture. That being said, the forehead muscle is the only muscle in you forehead that lifts the brows and eyes. If you have a short/small forehead, the injections should remain high. If your brows sit low or heavy, you injections should sit high. If injected too low, it could lead to a brow ptosis, a drop in your brows, it could also make the area feel heavy.