How much is one syringe of a dermal filler? Most HA Fillers are 1 ml or 1/5 of tsp per syringe. When informed this fact, most are surprised how small the volume is in each syringe. An excellent Dermal Filler Injector must be knowledgeable about each filler’s unique characteristics, so the appropriate filler is chosen, further the injection amount, site, and depth are determined accordingly. Coupled with medical training and artistic sensibility or “an eye for beauty,” may the injector deliver consistent result of making every patient younger and more beautiful. As you may discern, the final outcome of each injection is largely determined by an injector. Choosing the best injector is the only way to meet your expectations.