What is the treatment cycle and pain level like for the popular Revicol these days? I'm also curious about the downtime!

As I get older, I feel my skin losing elasticity and my pores seem to be getting wider, so I find myself increasingly worried every time I look in the mirror. While searching for dermatological procedures to improve elasticity, I became interested in a collagen injection called Revicol because I heard it is very effective these days. People around me recommended it, saying it replenishes collagen deep within the skin to naturally plump up volume, so I am seriously considering getting the Revicol treatment. However, since I tend to be sensitive to pain, I am wondering if the procedure will be painless if I apply anesthetic cream. I would also like to know how long the downtime is—such as for bruising or swelling—and whether it will immediately interfere with my daily life. I plan to visit a clinic soon for a consultation regarding Revicol, and I am curious to know how many sessions are typically required to see noticeable improvements in skin firmness.