I've had Botox done for the first time recently and very happy with the results. I did have to go back for two top-ups to get the amount right. I have a very expressive face and often scrunch and tense my brow while I sleep.
Anyway, I'm wondering how long I can expect my Botox to last? 3 months? 4, 5? Will my expressive face and brow scrunching reduce the amount of time it works?