I want to get a neck wrinkle filler.

As I enter my 40s, not only does my skin show signs of aging, but my neck wrinkles also become more noticeable. In my 30s, even if I had neck wrinkles, I didn't pay much attention to them with makeup, but now that I'm in my 40s and my skin has lost elasticity and sagged, I am concerned about neck wrinkles as well. I think other laser treatments for neck wrinkles might be a bit too harsh for the delicate skin of the neck, and collagen injections seem to be less effective. I believe that neck wrinkle fillers would be more effective and beneficial. Not only the skin but also having many neck wrinkles makes one look much older. I want to choose the safest and most effective neck wrinkle filler.