The forehead and brow region have a variety of muscle groups which contribute simultaneously to facial expression. Each of these muscles has a unique function. Some of them may elevate the brow, while others may depress the brow.
When Botox is used strategically to target specific muscles that depress the brow, this can result in minimal degrees of brow elevation. These changes, although subtle, can have a dramatic impact on facial expression. In this situation, a two millimeter elevation can be enough to remove a scowl from someone’s face.
It’s important to remember that the result of Botox injections is not permanent and treatment needs to be repeated at three month intervals. The procedure is helpful for mild cases of brow descent. In severe cases, surgical brow lift is indicated.
The success of this procedure is highly dependent upon the skill of the injector. A lack of understanding of the facial muscles and their function can lead to brow descent instead of brow elevation. If you are considering this type of procedure, make sure you consult with a board certified plastic surgeon who can help you decide which option is best for you.