Results from Botox typically begin to appear within 3 to 7 days

https://www.scribd.com/document/977826760/Botox-for-Frown-Lines-Soften-the-11s-Safely-and-Effectively-158852

Results from Botox typically begin to appear within 3 to 7 days, with full smoothing effects visible around two weeks after the injections.