What are the limitations of Botulinum Toxin?
Unfortunately, Botulinum Toxin injections are a temporary solution for the treatment of dynamic wrinkles. The effects of the injections last from three to six months. You will need to have injections about two to three times a year. The early clinical studies indicate that the duration of the treatment benefits is increased over time so that you should require fewer injections in the future. The duration of the effect varies from patient to patient and may be less effective for those over 65 years of age.