How often can you get Botox injected in the same area - specifically above the upper lip to create a "lip flip" effect?

There may have been an unique individual patient where this actually happened. The real question is this reproducible. I have never seen before and after pictures of the lip flip that did not also include fillers in the lip edge to accomplish this effect. This is a piece of marketing hype, vaporware, that does not do what is promised. My advice is don't get botox injected in the lip. Hyaluronic acid fillers are much better and accomplishing everything in the lip.

Botox injections usually last for 3-4 months, but start wearing off gradually at about 2 months time. It is completely normal to have small amounts of Botox injected at the 2 month mark to help maintain and prolong the results that you love. I recommend scheduling a consultation with a board-certified cosmetic dermatologist who is an expert in facial injection techniques to help you maintain your treatments. In my practice, we have more than 45 lasers that we combine with other treatment modalities, including Botox and dermal fillers, to customize treatment plans to the unique needs and goals of each of our patients.

The effects of Botox are temporary and the longevity of the results can vary by patient. If you are noticing that your Botox effects have gone you can return to your injector to treat the same area even if it is less than the standard time.

Hello. Thank you for your question. If your Botox has worn off, you can get it injected again after two months. If it was your first time having that area injected, your injector may have used a more conservative dose. Ask if she can do an extra unit on each side. Hopefully this will help it last a little longer.

You are spot on in your summary of treatment and wear time for Botox, particularly the "lip flip".  Neurotoxin (Botox, Dysport, Xeomin) all attach themselves to the junction between the nerve and the muscle. Muscles with more movement can have a tendency to "wear off" quicker--and lets face it:  your mouth moves a LOT (talking, laughing, smiling, eating, kissing, etc)!  Another consideration is the quantity of toxin used--generally very little is needed around the month so consequently the effect dissipates faster.  If you feel the effects have faded at 2 months you are probably safe to repeat your treatment.  In my opinion, better to get a little in this area more frequently than get too much at one time and lose your ability to snicker!
Thank you for posting your question!  Stay gorgeous!  
Teri Scott, ARNP