How long does Rivicol last?

Hello! I've recently become quite interested in the Revicol treatment. I heard that since it's a premium collagen care product, it's effective for immediate volume and regeneration. It really piqued my interest, and after hearing the explanation, it feels like exactly what I need.

I am leaving this question because I have a few things I am curious about. I am wondering if collagen injection treatments like Revicol usually show noticeable results after just one session, or if I typically need to receive them regularly—at least three times—to maintain the effects. I know it varies greatly depending on skin condition, but for those who have received Revicol, how long do the general effects last? I looked it up, and it seems to last quite a while...

Lastly, I am also curious about how long the marks or swelling last after the Revicol procedure!!