Botox: Forehead or Glabellar?

Your photograph shows no lines in the glabella or forehead. Just some smile related crows feet.  If you want to maintain the effect of Botox which apparently has made you happy by limiting or erasing the lines on the forehead and crows' feet, then you should stay with that.  The glabella and forehead are two dynamically different areas.  It actually is VERY unusual that I only treat the forehead without treating the glabella because there can be a droop of the forehead if the glabella is not treated to help lift.  Furthermore, the number of units to treat a forehead usually is smaller than the glabellar treatment, so you would not necessarily save money by changing the treatment.

To answer you question, you should get your forehead injected, not the glabellar area.  Injecting the glabellar area will not help to correct your forehead wrinkles because you will be targeting the incorrect muscles. Regards, Anil Shah 

The most likely patient to be unhappy with neurotoxin treatment (Botox, Dysport, Xeomin) is the under-treated patient.  As Dr. Naficy pointed out, the concept of "spreading around units" is nothing but a waste of money.  Just as you would treat a headache with the appropriate dose of Ibuprofen, undertreating muscle activity with toxins leads to minimal or no result.  I have never seen a patient have an acceptable response with Botox with less than 20 units per area.