Will someone receiving Shrink for the first time feel the effects?

I have recently become interested in skin firming care and have been looking into various options, and Shurink appears to be the most frequently mentioned. However, since I have never had the procedure done before, I am both excited and worried.

I've seen many reviews mentioning that it helps refine the jawline and improve elasticity, so I'm wondering if even a first-time patient can notice a difference. I don't have a lot of facial fat, but I am concerned about a slightly sagging overall look.

I would also like to know if there is a significant difference in effectiveness depending on the number of shots. I am curious about the typical duration for first-timers and am concerned about the level of pain. I am also curious to know how satisfied those who chose Shurink as their first lifting procedure were.