Shortest duration HA filler? Which HA filler lasts the least amount of time?

Thank you for your question. You can try Belotero. It lasts, in my experience, for about 2-3 months. 

Hello, most HA fillers will last 6-12 months, and Voluma will last two years. The duration of the filler will largely depend on where it is injected, as we blink our eyes and use our mouth often and the filler will dissolve quicker in those regions. It will last longer in the mid face and temples. Each filler varies based on mechanical properties as well. Consult an experienced injector who understands facial anatomy. 

Hello, Thank you for your question. Juvederm will last appx 6-9 months and can be used throughout the face. Volbella can last 4-6 months but can only be used around the mouth. Hope this helps! Good luck with your weight loss and cosmetic journey!