Can Botox to the forehead make your forehead get bigger over time?

Thank you for your question.  Botox cosmetic interacts with muscle contracture and does not make your forehead bigger over time.  Used consistently, Botox will soften lines in the forehead due to persistent muscle contracture and creasing.  Best of luck.

Botox will not cause growth of your forehead.  Botox works by limiting muscle activity in the area it is injected.  It is a temporary effect which lasts 3-4 months.  It may cause a more relaxed look to the face, which may give an illusion of a longer forehead in some people.

Botox can widen the forehead as a cosmetic result, but it cannot permanently anatomically widen the forehead.  Best, Dr. Emer.