What makes collagen care different from other firming treatments?

I feel like my skin has lost some elasticity, so I am looking into collagen care.

There are so many treatments related to skin elasticity that I honestly can't figure out how collagen care differs from the others.

I'm confused to begin with whether lifting procedures and collagen care share some characteristics or if they are completely different concepts. I also suspect that the timing of the effects might vary depending on whether collagen care directly replenishes collagen deep within the skin or induces its production. I've also seen claims that collagen care has almost no downtime, and I'm curious if that is true.

I would also like to know if receiving collagen care is effective in the early stages of loss of elasticity, or if it is better to wait until some degree of sagging has already occurred. For those who have received it, I would be really grateful if you could let me know in the comments which features of the collagen care resonated with you the most!