Juvederm - Does It Expand After Injection?

Juvaderm  will attract water from the body and cause some additional swelling at the site of injection for 1 - 2 days.  This will settle and disappear relatively quickly.  Just the trauma from the injection can cause some swelling as well.  Correction of the area treated should be evident immediately and not dependant upon waiting for "swelling " to occur.  It sounds like you need more Juvaderm to the areas you wish corrected or be accepting of a lesser result if cost is a factor. 

Juvederm like all HA's absorb water as part of the process and will swell in the area a bit, it should dissipate rather quickly and I wouldn't expect to last. I tell patients that at the end of the procedure, what they see is really what it will look like for the time the product lasts.  It may go down slightly after the initial swelling subsides.

It is normal to wait even up to three or four weeks after a Juvederm or Restylane injection to see what the final true appearance is, before adding more or fully evaluating the results. There is some tissue swelling due to trauma, plus the gel itself absorbs some water before finally settling to its longer term appearance.

When evaluating whether to add more, it's not a bad idea to wait a few weeks to see how MUCH more is needed, to optimize that second visit and reduce the chances of needing a third visit.