I'm curious about the density effect

I'm curious about the density effect.

I'm also curious if every dermatology clinic has a place that does density.

Density is said to work by applying high-frequency energy deep into the skin.

I wonder how much stimulation there is

It says 400W, but I don't know what the stimulation level is.

I'm also curious about what side effects there might be while doing density.

And, as for Density, it doesn't seem like it's a one-time treatment, so there's no way to know how many cycles there are.

And I'm also a little curious about the cost.

What I'm most curious about is the density effect ^^

Those who have tried it themselves, please share.