I got botox shots for the area between my eyebrows. They did three shots in that area. After a couple of days it kicked in and the muscle that moves the brows together didn't move when I tried to make them. It lasted a little over three months and slowly wore off. Now I just try to not move my forehead so much when I talk or read. I will do it again if I feel I am overworking the muscles again and starting a wrinkle.