is 6ml of voluma a large amount to have in the face for a 23 year old ?

Everyone's face is different, so some people may need more Voluma than others to achieve the desired result.  I would say that 6cc of Voluma does seem like a lot for a 23 year old, but without examining you or seeing photos of you, it is impossible to know if that is a good amount for you or not.  I would say there is not a disadvantage of having Voluma at age 23, as long as it is appropriately used.    

Thank you for your question. Without an in-person exam it is difficult to say how much Voluma is ideal in your case. If you are not happy with your current results and want to add additional volume, you can gradually add more syringes of Voluma. If you were my patient, I would have you return in 2 weeks after the swelling has gone down to determine if you want subsequent injections. I recommend you see an expert injector, such as a Board Certified Plastic Surgeon to determine the number of syringes needed to achieve your desired look.

While every patient's face is different with its own unique needs, I would say that 6 cc of Voluma for one so young is a bit much. However, without seeing you in person, that is just a guess. I don't see any disadvantages of having so much so young other than it might be too much volume and you may be unhappy with the results. Kindly,Kouros Azar