Is the density effect noticeable?

I've recently noticed a general decline in skin elasticity, so I'd like to inquire about the Density effect. In particular, my facial lines have become more blurred and my skin feels thinner than before, so I'm looking for a treatment that fundamentally improves elasticity, not just a simple lifting treatment. I've heard that the Density effect helps regenerate collagen and improve skin density, but I'm curious about how long it takes after a treatment to actually see the effects. I'd also like to know whether the Density effect is temporary or whether it gradually improves over time. I'd also like to know the number of treatments needed to fully experience the Density effect, the recommended interval, any pain or recovery time, and the impact on daily life.