Time off work for recovery from Juvederm??

Juvederm can result in much too much swelling in that area.  You'll probably be better off with something with less propensity to attract water and that won't create a bluish tinge (juvederm can sometimes do this which is not an improvement over the dark circles!)If done correctly you'll be back at work later the same day.  I'd strongly suggest making sure they use a microcannula to reduce bruising.

Juvederm is not the best filler for the tear trough area as it can get quite swollen for long periods of time after the injection.  Better to use either Belotero or Restylane.  Most people will get some swelling for a day or two after the injection. Some will also bruise, and this is quite variable.  Most patients do not take days off from work for this, but I wouldn't do it 2 days before any big event!