What's the Maximum Amount for 11s?

There are several causes of your problem.

First, your corrugator muscles are broad based, i.e. .completely over the eyebrow, so those fibers will need to be relaxed as well.

Second, the wrinkles you have are very well established and it will take some filling material to fill in the wrinkle in the mean time.  Patient expect the "11's" to be gone, but Botox will not always eliminatedecades of sun damage and wrinkling.

Third, you are actually refractory to Botox, rare but possible.

A dose of 50 units of Botox (Allergan produced) in the glabella should have some degree of efficacy as far as minimization of movement (assuming that you are receiving the real product, properly reconstituted, and properly administered).  Please understand that very deeply etched lines will not disappear with Botox alone.  However, I have seen an occasional patient who is poorly responsive to Botox, yet responds to Dysport (Medicis produced).

You state that you have had weekly additions to the botox number of units in the glabella. During an examination for this concern, I evaluate if the muscles are moving, not if the creases are still there!  If you are not able to move the muscle then you need no more Botox for now.  There may be continued improvement of the creases as time progresses and the muscle is no longer able to make the skin fold like an accordion.  YOu have probably develoepd these creases from years of crinkling the frown muscles and for some patients, the creaes are deep and need many months of muscle relaxation for the lines to improve. Sometimes botox takes more than two weeks to show its maximal onset of effectiveness and it may be unwise to add units before this time.  If two weeks after Botox the muscles are still moving then additional units may be needed, and for some hypertrophic muscles, mostly in men, but I have seen some women with this as well, 50 to 60 units are needed, but not much more, and again, this is not common.  If the muscles are relaxed, and you don't want to wait months for continued improvement then a filler can be added but it should only be Juvederm Ultra or Restylane.  Thicker products have compromised circulation in this area and caused complications.