How often and how many times should I do Vitaran?

I am looking into the Vitaran procedure and would like to know the recommended number of sessions and treatment intervals. I would like to know if skin texture improvement is usually noticeable after just one session, or if consistent treatment of at least three sessions is necessary to see results. I am also curious about the general treatment interval: 2, 3, or 4 weeks. I would like to know if the effectiveness of the procedure varies significantly depending on an individual's skin condition or goals. Furthermore, I am wondering how increasing the number of sessions affects the duration of the results. It would be helpful for me to make a decision if you could share reviews from people who have actually received the treatment, explain whether recommended intervals differ by clinic, and share the criteria used to determine the number of sessions.