Is there a limit (safety) on how many dermal fillers a person can have injected in their face?

Thank you for your question. There is no specific limit on the number of syringes that can be injected in the face based on safety data.  However, there is a general rule about how much filler one would want to inject in certain anatomic areas.  For example, injecting more than one mL of hyaluronic acid filler into the lips or tear trough region would be unusual.  Use of more than two syringes of filler per cheek or per nasolabial fold at one time would also be beyond my comfort level.  The most I would typically inject at one time in the face would be 7-8 mL of filler, but this may vary based on the indications and the injector you see.  There are certain areas such as the inner corner of the nasolabial folds and periorbital region where technique is critical and volume should be limited due to teh risk of vascular occlusion.

I dont know of any law limiting the amount of fillers that can be injected. when I do fat I'm often doing 10x the amount of synthetic filler volumes.  Best, Dr. Emer.

Thank you for this great question.  When I do Sculptra, I often inject 2 vials, and occasionally 3 vials.  I typically dilute each vial in 9cc.  Thus I often inject 18 cc in one session.  When I first began using Sculptra, I realized how natural patients can look with an additional 18cc of volume.  I explain that the water/lidocaine mixture goes away in a matter of days and then some of the lost volume gradually gets replaced with collagen in the ensuing weeks.  Since I began using Sculptra, I have started to add the traditiona hyaluronic acid fillers at the same time.  Thus even though I inject more than 20ccs of volume in one setting, patients continue to look natural and more youthful.If I am not doing Sculptra, and focusing on facial rejuvenation procedures, then it is not uncommon to add between 4-10 ccs  one setting depending on patient concerns and physical exam. What I would recommend more than anything is that you chose your injector based on their qualifications and experience.  I formally train other injectors on Allergan and Galderma products and know first hand that there is a wide spectrum of skills and experience out there.