The frowning muscles drag the eyebrows downwards. The muscles that close the eyelids pull in the same direction.
When frown wrinkles are being treated with a muscle weakening product, a small portion of the total dose can be reserved for injection under the lateral part of the eyebrow. In the majority of patients, muscle balance shifts in favour of the frontal muscles, slightly lifting the eyebrows.
This treatment is a nice adjunctive to upper eyelid surgery, but it cannot be combined with it at the same moment. It is safest to inject at least one month either before or after the surgery.
