Which one should I choose, Juberock or Livicol? They have different advantages, right?

As I age, my skin is losing elasticity and starting to feel a bit saggy, so I'm thinking of getting some collagen injections. I noticed that these two are the most talked about these days.

As I understand it, Juvelook seems strong at inducing self-collagen regeneration to completely fill in skin texture irregularities like pores, fine lines, and scars, while I heard that Revicol is effective at restoring firmness and density to areas where the skin tissue has thinned and sagged due to dieting or aging. Am I understanding this correctly?

Both have slightly different advantages, so it is difficult to choose which one is better suited for my concerns. Which one would you recommend for someone who is worried about enlarged pores in the butterfly zone and overall skin thinning?

Since I've heard that Juveloc depends heavily on the doctor's skill, I'm a little worried about side effects like nodules. On the other hand, I'm leaning towards Rivicol because its particles are soft, so I'm less worried about clumping even in thin areas like around the eyes and mouth.

Has anyone tried both Juveloc or Livicol, or has anyone settled on one of them and is seeing regular results?