Will it smooth out the rough texture?

Lately, whenever I look in the mirror, I can see at a glance that my skin has become saggy and the texture has become rough. It seems like the collagen deep within my skin is draining as I age, and as my elasticity decreases, my vertical pores also appear to be getting worse. Home care has reached its limit, so I am seriously considering and would like to get the Revicol treatment, which is said to directly replenish collagen.

I am curious how effective this skin booster is at tightening enlarged pores caused by loss of elasticity, just like my skin, and smoothing out rough texture. I’ve heard that you usually need to repeat the treatment a few times rather than just once to feel the skin plumping up from deep within... is that right? I will need to get it done a few times... Given my condition, what would be the ideal treatment frequency?

In particular, I heard that the degree of bruising remaining on the surface varies depending on the injection method. Would it be okay to have the procedure done on the weekend? I need to be fine by the weekdays...