I'm not sure of the exact date of service, but it was awhile ago and needed to share this experience. This was my second time getting botox from a board certified facial plastic surgeon. Had 35 units (I think, doctor didn't tell me nor did I ask) in glabella and forehead. The first time, I suffered from a headache for about a week (but it looked great... oh, darn you vanity) and I went back...