Half Syringes of Filler for Sale? Safe?

    Some patients doggedly insist that they only want a part of a syringe, but I refrain from selling portions of a syringe. 

Doctors do not sell ½ syringes of filler nor does Allergan supply them as such. Most people would require at least one syringe to properly treat an area. That being said, one syringe of filler can be decanted to another syringe to treat two patients. I would only do this if they were friends/relatives and came to our office together for their injections so that the stability of the product is preserved. 6 months is questionable.You should perhaps ask the MD how they are preserving the half syringe.

Obviously it doesn't make sense to buy a half of a syringe that isn't already packaged by the manufacturer as such, like a 0.4mL for example because you don't know what you're buying. If you are visiting a reputable plastic surgeon, you shouldn't have any reason to feel suspicious about their practices. If you aren't sure whom you're seeing, do your research first.