Adding more HA dermal filler on top of exsisting filler?

I layer fillers all day of all various types and its common and safe when done by an expert.  Best, Dr. Emer.

Fillers are great at giving a natural fresh look, but unfortunately they are a temporary fix since they will eventually disappear. Adding more filler over areas that already have filler is completely safe. I like to wait a couple weeks after the prior injection just to make sure there isn't any swelling in the area. I also like patients to see me every 6 months since most will need a small touch up (one or two syringes). It's nice to add a little every 6-12 months instead of waiting until all the filler is gone. That way, patients can look their best all the time.Andrew Campbell, M.D.Facial Plastic SpecialistQuintessa Aesthetic Centers

Yes, it is usually ok to inject fillers on top of already existing filler products.  Best of luck with your injections.

Adding to a filler or layering them is fine as long as done sterilely. The only problem that I ever run into is clogging my needle when injecting into/through an existing thick filler. This is easily fixed by changing needle or expelling clog. 

  Hi, I have performed many facial shaping and contouring procedures over the past 30 years using dermal fillers or facial implants.  It should not be an issues to add dermal filler to a previously injected area.  The HA filler can be added at anytime and how often this has to occur varies with the individual, the area and the degree of augmentation that's desired.  If this requires a good deal of time or filler to maintain, you might want to consider cheek augmentation with cheek implants for a permanent enhancement.  Hope this helps. 

Thank you for your question.  It is very common for patients to have different types of HA fillers.  There is no problem in doing this, even in the same area.In general I ask patients to wait about two weeks before having additional treatments in an area (if needed).  This is because the filler may swell a bit more for a few weeks and it is best to wait until things settle before adding more.So the bottom line is that it is fine to use different HA fillers, even in the same area.  More filler can be added at any point (but I suggest you wait about 2 weeks before adding more filler to a given area.