Is Botox Appropriate for Nasolabial Lines?

Hi Sky,
Botox is great for wrinkles caused by muscle contraction like the frown lines between the eyes and the crow's feet at the outer eyes. Muscle activity in these areas are responsible for the development of fine lines and wrinkles. Using Botox in these areas can halt the muscle contraction and therefore get rid of the wrinkles.
The smile lines (nasolabial folds) are caused by an altogether different problem. Gravity and loss of volume in the skin combine to cause the lines that appear between the sides of the nose and the corners of the mouth. In this area dermal fillers like Restylane, Juvederm and Perlane are a much more appropriate choice as they are designed to add volume.

Botox is not used for nasolabial lines. Generally it is not advised to weaken these muscles as it can create the appearance of a stroke..
Fillers are generally used for this purpose.