What is the difference between Juvelook and Rejuran among the types of collagen care?

As I get older, I feel my skin becoming thinner, so I want to receive collagen care to firm it up from within. I heard that Juvelook adds volume while Rejuran helps with regeneration; which of the two is the more urgent treatment for my skin?

I have a lot of fine lines overall and a dry skin type, so I was wondering if it is possible to receive a combination of the two treatments. Please also let me know how long the unevenness on the face lasts after the procedure, and what the prices are for each.

I hear that consistency is key in collagen care, so I want to settle on a good place this time and receive treatments for a long time. I look forward to a thorough and friendly consultation when I visit.