Hi,
Botox or Dysport are really the most effective treatments for strong frown lines of the glabella (central forehead between the eyebrows). Although the results are transient, the treatment takes very little time. Your alternative is removal of the corrugator muscles of the glabella, which are responsible for your deep furrows. This can be done through an incision in the eyelids or as part of a brow lift. Although a very effective treatment, the downtime for surgery is usually 2-3 weeks - much harder to fit into a hectic schedule.
Hope this helps. Best of luck.



