Fillers. I suspect that the injector I go to reuses the syringes. Is this dangerous?

Your scenario is a bit concerning.  There is no data to guide or support the use, reuse or storage of excess product in a syringe of dermal filler.  Once Radiesse has been exposed to air it will become hard and I suspect very difficult to inject.  I would definitely be concerned with this practice and understand you are worth more than the manner in which you are currently being treated.

Dangerous? Unreal You need to do a number of things if you are certain and you must be certain1 change doctors2 report him to health dept3 get tested for HIV and hepatitis4report him to local med societybut You Must Be Sure

Reusing the syringe/needle is not only unsafe but the basis for physician discipline.  Radiesse should be dispensed to one patient only. If there is leftover product, it should be marked and kept in the medical refrigerator for subsequent use on the same patient. 

The companies strictly state that Voluma and Radiesse are one use and one patient syringes.   USING FOR MULTIPLE PATIENTS HAS EXPOSURE FOR INFECTION AND IS A VERY BAD IDEA.   MY BEST,  DR COMMONS

Once opened, syringes are not intended to be reused.  That's true even if it's for the same patient, as exposure to air and moisture can at least theoretically change the composition of the material.Using a single syringe on more than one patient is not the standard of care and risks significant harm to any subsequent patient, as blood can travel retrograde (ie back up into the syringe) from the first patient and be injected into the second.  There are many potential deleterious effects from this scenario.It will be hard to you to prove one way or another that your doctor is doing this.  You can ask to have the syringe opened in front of you.  But there is no shortage of qualified doctors from different specialties, all certified by boards recognized by the AMA, and if you're even considering that as a possible issue it would be understandable - to put it mildly - that you seek another doctor.If you are able to confirm that you received an injection from a syringe that was used on someone else then, as another physician suggested, you should both take care of yourself (have yourself tested for HIV and hepatitis) and move to make sure that MD does not do that to anyone else.I'm sorry for any concerns you have but I hope that this has helped and good luck,Dr. Alan EnglerMember of #RealSelf100

I would like to know why you think this is occurring and agree with some of the other responses that this could be dangerous to patients and grounds for disciplinary action for the doctor. It is definitely not the standard of care. One thing u may do is request a copy of your records- every syringe of filler has a label that should go into your chart. I bring the unopened box of filler into the room and prepare it and use it there. The label from the syringe is then placed into the chart. I wish you the best of luck.