Forehead treatment requires balancing the frontalis
https://www.google.com/maps/d/u/0/embed?mid=1rMpxOUSGdciBIp4L_0tDg5QcsZinj6Y&ehbc=2E312F&noprof=1
Forehead treatment requires balancing the frontalis and glabellar complex; overtreating the forehead alone can lower brows or flatten expression.