According to the American Association of Cosmetic Surgeons, the average cost for fillers is $800 per session.According to other sources, it's more like $925. Either way, though, this price can vary widely depending on a number of factors.The only sure way to know what your price for a particular dermal filler procedure would be is to talk to the doctor you've chosen to perform it.artly this is the cost of the filler, and partly it is because 10 syringes takes quite a bit more time to inject then just one, so you have to pay more for taking up the more of the doctor's time and the clinic's space.