At what age can I start applying Botox?The cost of fillers depends on several factors, like the number of syringes necessary to achieve a good result, the brand of filler used, and the longevity of the filler, to name a few. Most plastic surgeons inject hyaluronic acid fillers, which come in different concentrations and have distinct qualities. You will have to pay for the product plus an application fee, which varies between physicians. The price ranges from $500 to $6,000, or more. It becomes evident, therefore, that every patient requires a consultation with the doctor before he/she can receive a quote for the procedure.