How often is the recommended frequency for Celdiem?

My skin texture has become very dry and my complexion looks poor, so I am looking into skin boosters. While browsing community posts, I saw comments saying that Celle Diem has good ingredients and is effective for improving the skin barrier. Since my skin is on the sensitive side, I am interested, but I am wondering how many sessions are typically recommended at a clinic to see the full effects of Celle Diem. I doubt I will see dramatic results after just one or two sessions, so I am considering signing up for a package deal. If anyone who has personally received Celle Diem could tell me how many sessions you usually needed and what you consider to be a satisfactory recommended number, it would be a great help when I go for a consultation!