A brow lift acts on the tissue above the brows and below the hairline. It can remove excess forehead skin, reduce the signs of excess aging or sagging, and even out your brows. Occasionally, brow lifts are done at the same time as a hairline lowering surgery. However, if you have both a sagging brow and a very high hairline, you may want to address the hairline first. By reducing the size and space of the hairless forehead, your brows may be less noticeable. Removing the visual field of a high, wide forehead will draw attention to your eyes and other facial features.