Alas, it wasn't always this way. In fact, many moons ago I had the magical elixir injected into the furrows between my brows that had come about as a result of a few too many trips outdoors without sunglasses. (all that squinting!) That first go-round was quite successful, and surprisingly long-lasting---over a year. I surmised that in the time I was unable to squint, I must have retrained my face to squint without furrowing my brow. I also started religiously donning sunglasses to go outdoors, even on overcast days.
Unfortunately, time marched on, and the furrows returned...So years later, imagine my surprise when my second attempt to botox-ify my furrows was remarkably unsuccessful.
A bad batch? Maybe, so the surgeon tried a new vial. No dice. Bad technique? Possibly, so I tried a new surgeon. Twice. Still the furrows persisted.
Take heart, readers. Immunity to Botox is very rare, although I'd love to hear from others who have had the same problem. Feel free to write and share your experiences...I know I can't be the only one!