Low dose of Sculptra
Thank you for your question and congratulation on your reduction in body fat composition. I hope the loss was intentional. Sculptra is most often used for larger volume facial augmentation. A single vial is not likely to give a noticeable change for the areas you mention. The truth about all fillers is that they work when used correctly and for the correct indications. The concept of small volumes of fillers "lifting" tissue is a bit misleading. If you are to the point where you are pushing your cheek up with your hand or fingers then no amount of filler is going to achieve that result. Make sure to clearly state what you are looking to achieve. Best of luck
Possible Sculptra to fill cheeks and lift laxity around mouth
It certainly is possible to use Sculptra to add volume to the cheeks and this can cause some improvement in laxity around the mouth. Sculptra treatment normally requires multiple treatment sessions to gradually produce the desired result. I sometimes do use less than one vial in treating a patient in a single session, but the amount used depends on the starting appearance of the person. I would also say it is better to err on the side of using less than using too much, but the amount of improvement is also dependent on the number of treatment sessions used. The amount used in each session is ultimately decided by the physician treating you, but I would say it is possible for you to get some improvement using less than one vial in a treatment session. Just remember that this will need to be repeated several times to obtain the best effect.
Facial Sculpting Using Fillers Like Voluma, Radiesse, Lyft, Juvederm and Sculptra and Fat
You can use sculptra as your base and then other fillers on top to get a more improved outcome. If you really need a lot of volume, fat injections may be best. One vial of Sculptra is likely not going to give an optimal outcome. Please see an expert. Best, Dr. Emer
What to do depends on your expectations
IF you want a truly tighter and more sculpted and angular neck line, nothing will do as well as a properly done facelift surgery (and for many of us a "mini" isn't going to do anything other than give a mini result for a mini length of time).
On the other hand, IF you will accept less result you can entertain the cheek fillers (I perfer the Restylane family over Sculptra) to pull up the neck skin a little bit. Just make sure that the treatment you choose will give the results you desire to avoid disappointment.