Endoscopic versus open: confirm which one you are actually being quoted
Before comparing any prices, confirm which technique is actually being offered, since "brow lift" is sometimes used loosely to cover both.
The endoscopic approach uses a camera and instruments through three to five short incisions, each one to two centimetres, hidden behind the hairline, to release the forehead from the bone, weaken the frown muscles, and fix the brow in a higher position. It leaves short scars hidden in the hair, better preserves scalp sensation than an open lift, and does not raise the hairline. It lifts somewhat less than an open forehead lift can achieve in a very heavy brow, and it requires specific endoscopic instruments and training, which is reflected in the price.
The open (coronal or trichophytic) approach uses a single incision running from ear to ear across or just in front of the scalp, giving more powerful lifting capacity for a very heavy brow but leaving a longer scar and a higher likelihood of lasting numbness behind it. This is covered on its own general brow lift cost page.
If you have a moderately heavy brow and want to avoid a long scar, the endoscopic approach is usually the better fit and is the technique this page focuses on.