I saw Kim Kardashian’s Instagram Story about XERF recently.

She called it her “new fave tightening laser” and said it didn’t hurt.

One correction first:

XERF isn’t a laser. It’s a radiofrequency (RF) skin-tightening treatment.

So I looked into it because I wanted to understand what, if anything, makes it different from the lifting devices we already know.

Here’s my short version.

What is XERF good for?

XERF is mainly used for non-surgical skin tightening and improving mild skin laxity, especially when the concern is loss of firmness or a softer-looking lower face and jawline.

What I found more interesting is how it delivers the RF.

XERF uses two frequencies, 6.78 MHz and 2 MHz, with three depth settings and multiple energy levels. The idea is to let the provider adjust how the heat is delivered depending on the skin and treatment area.

It also uses surface cooling and is designed to be performed without numbing.

That, to me, is probably its clearest advantage.

XERF makes the most sense when you want RF tightening but comfort, little downtime, and adjustable treatment depth are also important to you.

Then I compared it with the two obvious alternatives.

XERF vs Thermage

Both are RF treatments, so their goals overlap quite a lot.

Thermage has been around much longer and has a large track record for tightening and improving jawline definition.

XERF’s interesting point is the dual-frequency system and the ability to adjust treatment across different depth settings.

I wouldn’t say XERF is simply “better Thermage.”

They are competing approaches to RF tightening.

XERF vs Ultherapy Prime

This is a different comparison.

Ultherapy uses microfocused ultrasound, not RF, and can target specific tissue depths including 1.5, 3.0 and 4.5 mm with real-time imaging.

So I think of it roughly like this:

XERF → RF tightening, firmness, early laxity, comfort matters

Ultherapy Prime → ultrasound lifting, including deeper tissue targeting

Thermage → established RF tightening with a long clinical history

Obviously faces don’t fit neatly into three boxes, and sometimes combinations make sense.

But if someone asked me what the actual appeal of XERF is after all this reading, my answer would be:

It’s not that Kim Kardashian did it.

It’s that XERF gives people another option for non-surgical RF tightening when they want to address early laxity or a softer jawline without much interruption to daily life.

That’s a much better reason to look into it.