I had 50 units of botox in the forehead and glabella lines 9 days ago - this was my first time. For the first 6 days the product seemed to be working, my lines were smooth - movement was reduced. From day 7 the movement has come back - as have the wrinkles. I spoke to my injector and she said 'this is likely because you haven't had your two week top up and your muscle activity is starting to return'... How is this possible when she used 50 units? Shouldn't it be settling by two weeks - not returning to movement. Please help.