I have a question about the Sculptra treatment cycle.

What is the treatment cycle for the first Sculptra session?
I usually heard it at intervals of one to six weeks.
Is it more effective to receive the treatment in divided sessions, typically around 3 times, rather than getting a large amount at once?
Assuming the person is in their late 40s, would a total of about 4 sessions be sufficient?
Please let me know if this amount is okay to get vaccinated while avoiding side effects.