Uneven Results on Forehead with Botox?

If your results from botox are uneven, a touch up can frequently be performed to even the results. The eyebrow position depends on muscles which raise or lower the eyebrow. By weakening certain muscles, the eyebrow position can be altered. Too much Botox near the eyebrows or compared to botox in muscles that lower the eyebrows results in lowering of the eyebrows.Fillers can sometimes help fill deep creases which are not completely removed by Botox.

It's very difficult to answer your questions without first seeing pictures of the areas you are describing. Sometimes it takes only a couple of units to correct residual activity - and filling a line created by Botox (if that's what it is) probably isn't appropriate in this case.

The corragator muscle is interwoven with the frontalis muscle.  The corragator muscle creates the vertical glabellar creases and this muscle is a depressor of the inner aspect of the brow so this muscle will cause an elevation of the medial brow.  If the injection is performed too high or if the  Botox spreads superiorly then the frontalis muscle can be effected and this causes the brow to drop. Conversely if the central brow is injected and no botox is used laterally then you get a metaphisto or devil's brow.