Botox Units Needed to Correct Gummy Smile?

Dear Ozgirl
Botox is very good for treating the 'gummy smile'. It is placed in the muscles that are beside the nose- weakening the upward pull and thus the amount of lift of your lip. If too much is place then you may have an incomplete smile.
Usually 1 to 2 units are placed per side. You should have a check at 2 weeks.
With Warm Regards,
Trevor M Born MD

Botox and other neuromodulators are a great option to treat the look of a gummy smile. Relatively little product is needed for a result that lasts three to four months. Generally two to four units per side is the dose used for treatment. Always see an expert injector for your Botox.

I typically inject 4-8 units to relax a gummy smile. Typically there are 4 injection points (2 per side) and we can inject 1-2 units per injection point depending on "how gummy" the smile is, or how strong your muscle pull is. Be sure to go someone experienced in this procedure as the muscles around the mouth are complicated.

A typical Botox dose to address a gummy smile is anywhere between 4-6 units to the upper lip, and if needed, 4 units right under the nose area.

 Good Day Oz Girl,
It takes about 5-6 units of Botox to treat the gummy smile, even in Aussies.  Make sure that you choose a physician who is experienced in this area of injections.  
Good luck and be well.
Dr. P