There are several ways we can treat the muscles around the brows to lift eyebrows
1. Treating crow's feet (by relaxing contraction, we can have a more lifted brow)
2. Treating 11s (can lift central brow)
3. Treating UPPER half of forehead
I specifically say treating upper half of forehead because the forehead can be split into lower forehead and upper forehead by something that we call the 'line of convergence.' When we are treated above the line of convergence (upper forehead) we can often create a brow lift. However, if treated below this line, we risk dropping the eyebrows.
It may be possible for you to get a lift from having tox placed in the upper forehead, however as we age and the skin in the forehead has less support (volume loss from temples, skin laxity, etc) then the risk for brows lowering after treatment becomes higher, even if we are treating above this line of convergence.
Sometimes, based on a patient's anatomy and degree of eye-hooding, we may completely recommend against treating the frontalis. However, you still may be able to achieve a subtle brow lift from treating the crow's feet and 11s.