The attraction of this treatment is in part due to the fact that the effects are temporary. On average the effects can last between 2-4 months, with most people noticing lines reappearing after approximately 3 months. The longevity of the treatment will depend on your muscle type and activity, which product was used and how much was administered.
In some cases, the continued use of Botox® will result in the need for less frequent treatments. This is due to the fact that nerve endings can eventually start to regrow at a slower pace. This does rely on having regular treatments to begin with, usually once every 3 months.