Juvederm after 5 years of silicone injected in upper lip. Can I fill the middle with HA? (Photos)

The short answer to your question is that most experienced injectors would be extremely reluctant to inject even today's natural hyaluronic acid-based fillers into areas previously treated with permanent fillers, such as silicone. Permanent fillers have been associated with the spontaneous development of nodules and granulomas even five, ten or twenty years after injection. The concern here that the mere physical injection of the filler might trigger just such a reaction, which can be very difficult to treat. This is enough for me to personally interdict any kind of subsequent injection--even within areas that are closeby to the previously treated sites, which still may be affected by the silicone even if not visibly on the surface. 

Thank you for your question. I believe that you can now safely use an HA filler. There is always a risk of inflammation or infection whenever an injection into the skin is involved. Please make sure you see a qualified injector as this will greatly reduce the risk of infection. 

Thank you for your question. I believe that you can now safely use an HA filler. There is always a risk of inflammation or infection whenever an injection into the skin is involved. Please make sure you see a qualified injector as this will greatly reduce the risk of infection. Best of luck!