Better to Start with One Vial of Sculptra?

Thank you for your question! The best amount to start with is two. You can always leave it at that or build from there depending on what your personal goal is. The first dose (usually on patients over 30) I like to refer to as the 'skin tightening dose.' This dose helps prevent sagging and gives your skin a radiant and healthy glow. The second dose, I like to refer to as the 'volume' dose. This dose gives you added volume in specific areas of concern where the face has lost volume or needs to be restored or enhanced. The results from the second dose are nice and gradual, giving you a beautiful and natural result to build on if you choose to. After the second dose, some patients achieve the amount of volume they desire while others require more than three. Everyone is unique and has different concerns to address depending on their facial construct, lifestyle, age and many other variables. I agree with your dermatologist in starting with two and from there checking back in for a followup to determine if you would like to add to your results. I hope this answer was helpful. For more information regarding this question, please view my video below. Best of luck to you!

Many patients will do well with more than one vial of Sculptra per treatment session, but it is perfectly acceptable to start with one vial at the first treatment. The important thing to remember is that the results will be less than using two vials, and it is unlikely that you will see significant results with only one vial before most injectors recommend proceeding to the next session (4-6 weeks later). 
With Sculptra, patients have to be patient but committed to the process. Doing only one vial and then waiting to see the full results before deciding to proceed with more would not be a good approach, as it takes a full 3-6 months to see the results, and by that point, patients should already have proceeded with multiple treatment sessions. If only one vial is used every 6 months or so, patients are unlikely to see a significant change.
All the best,

Depending on your goals and budget, you can start with one or two vials.  If your goal is to achieve a certain degree of volumizing with a few months, then I would recommend starting with two vials and then switching to one vial at a time as you are closer to your goals.  If you want really gradual results or your budget only allows for one vial at a time, you can do just that.

It is more important to have a well diluted (10ml) vial of Sculptra than the number of vials.
Even 2 vials can be safely administered.
Regards

It is highly unlikely that one vial will overdo it. Scultpra typically requires more than one treatment so it is inevitable that you will get more than 1 vial.