Has anyone tried a Density High?

Lately, I've felt like my skin isn't as elastic as it used to be. It really changes every year lol ㅜㅠ

While looking for skincare methods, I learned about the Density High treatment. I was impressed by the fact that it uses high-frequency energy to tighten skin elasticity from deep within, but I am curious about the differentiating features of Density High compared to other existing skin firming treatments.

I am particularly looking for results with minimal pain. If anyone has personally tried Density High, it would be very helpful for my decision if you could share how firm the skin feels immediately after the procedure.