How Many Botox Units for 11's or Frown Lines?

Everyone is different as to the amount they need depending on the size of the procerus and corregator muscles in the glabella.  20 can be reasonable for someone.  while others are good with 12 and others need 30 + if total paralysis is desired.  I like some movement myself.  Remember also, the day after injection is too soon to know the full effect of botox.  Wait until a week after to better gauge.  Lastly, completely eliminating lines on first Botox is probably unreasonable.  If the lines aren't "etched" in, called dynamic wrinkles (wrinkles that appear when squinting) then Botox can soften these lines.  If they are "etched" (ie static glabellar wrinkles), Botox will not help those disappear; filler combined with Botox would be most effective for these.  Lastly, unfortunately there are those that give less units then promised.  I encourage injections by experts - Dermatologists or Plastic Surgeons who do injections.  

The most common doseage of Botox to the glabella (the 11's) is 20 units. Patients with stronger muscles, especially men may require more, but in fact many patients use less to keep this area synchronized with the forehead, crow's feet and other areas. Dysport dosing is different. The most common Dysport dose to the glabella is 50 units, which is equivalent to 20 units of Botox in this area for most patients. 

The number of botox units are very dependent on muscle mass. 20 units would be typical for the glabellar area but everyone is slighlty different