Density in Daegu: which face is it right for?
To answer “is Density right for me?” there is a question to ask first: has your face thinned, or has it sagged? Those are different problems handled by different treatments.
The short answer
Density (radiofrequency lifting) is for a face whose contour is starting to sag, not for skin that has thinned. Cheeks drifting down and a jawline going soft are changes in the structure below the dermis, and Density treats that layer with heat. If thin, papery skin is the main concern, boosters come first; if the problem is hollow cheeks, Density is not the answer.
To be plain about the evidence: Density has one published human study of 16 people with no control group. Heating collagen with RF is a well-studied principle, but data that this device delivers the result is still thin.
Thinning and sagging are different problems
| Skin that has thinned | A face that has sagged | |
|---|---|---|
| Which layer | Dermal collagen | Structure below the dermis |
| What you see | Fine lines, pores, dullness, make-up sitting badly | Cheeks drifting down, soft jawline, shadow beside the fold |
| Treatment direction | Booster class (Rejuran, GOURI, Re2O) | RF lifting — Density sits here |
| Does Density address it | Limited | It is a candidate |
Most people have both. Then the order matters more than the device name.
The face we put Density on the list for
- Cheeks starting to drift down, creating a shadow beside the nasolabial fold
- Jawline going soft, the profile line breaking up
- Skin on the thicker side, so heat needs to reach deep — monopolar handles the deeper layer
- Not ready for surgery and wanting to start non-invasively
- Needing same-day return to normal life
When Density is not the answer
- Hollow cheeks or temples — tightening with heat can make hollowing look worse.
- Thin, papery skin as the main concern — boosters first.
- Severe sagging — beyond what non-invasive RF can do, and we say so.
- Pacemaker or other implanted electronics — monopolar current passes through the body.
- Metal implants or non-reversible filler in the treatment area — we avoid or adjust the area.
What makes Density different
RF is current, not light. Current through tissue makes heat from the tissue’s own resistance; collagen contracts and the body starts a repair response. Density sends monopolar (deep, broad) and bipolar (shallow, predictable) in sequence within one pass, adjusts output to the skin’s resistance in each area, and shows skin temperature during treatment. How it differs from XERF and Oligio is in Density versus XERF and Density versus Oligio.
When to judge the result
The tightness right after treatment is immediate collagen contraction and soon fades. The lasting change is remodelling over weeks to months, so judge at two to three months, not the next morning.
Which treatment fits which concern
| Concern | Treatments to consider | Why |
|---|---|---|
| Cheeks drifting, soft jawline | Density / XERF | RF for the deeper layer |
| Thin, papery skin | Rejuran, GOURI, Re2O | Dermal material and environment |
| Sagging plus thinning | RF then booster, in sequence | Different layers, so we set an order |
| Hollow cheeks or temples | Filler class | Tightening can make hollowing look worse |
| Severe sagging | Consult on surgical options | Beyond non-invasive RF |
Which treatment is “best” is decided by the state of your skin right now, not by the product. In consultation we look first at what has been lost and what is still there, before we talk about any product name.
Frequently asked questions
From what age?
Condition, not age. A softening jawline in your late thirties makes you a candidate; a main problem of lost volume in your fifties does not put Density first.
Does it hurt?
There is heat. Density protects the surface with gas cooling, and because the endpoint is the heat you feel, intensity is adjusted with you.
How long does it last?
Density has no long-term follow-up data. For RF lifting in general, many people review at six to twelve months, but that is clinical experience.
Density or XERF?
Never compared directly. They combine different things: Density two polarities, XERF two frequencies. See Density versus XERF.
Read next
If you want to go deeper
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Who wrote this
Written and reviewed by Lee Chi-Hak, MD, medical director of Miso Clinic in Daegu, South Korea. Studies are cited with their size and limitations, and where we could not find data we say so. Individual decisions need an in-person examination; this page does not replace one.
| Medical director | Lee Chi-Hak, MD |
|---|---|
| Address | 4F Bombom Building, 125 Dongdeok-ro, Jung-gu, Daegu, South Korea · Exit 1, Kyungpook National University Hospital Station |
| Phone | +82-53-428-2700 |
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| Hours | Weekdays 11:00–19:00 (lunch 13:00–14:00) / Saturday 10:00–16:00 / Closed Sundays and public holidays |
| Treatment guides | All guides |
| Comparisons | All comparisons |
| Columns | All clinical columns |
| Reference library | All booster and device references |
References
- Jeisys Medical, Density product material — sequential monopolar → bipolar RF, 6.78 MHz, up to 400 W, RIC impedance correction, five-level gas cooling, four tips (ALPHA, Eye, Face, Body). MFDS-approved medical device.
- Density human study — 16 people, 3D measurement 0.82 ± 0.36 mm, no control group.
- 2026 systematic review (15 studies, 1,230 people, one RCT) — states that no head-to-head comparison between RF devices was identified.
- Thermage CPT Technical User’s Manual (Solta, 2021) — treatment endpoint is patient heat feedback (2.0–2.5 on 0–4), not shot count. US GUDID tip specs: EYE 0.25 cm² 450 REP, TOTAL 4.0 cm² 600 REP.
Everything on this page is general information and does not replace medical diagnosis or treatment. Effects and side effects vary with individual skin condition, age and underlying illness, and the same result is not guaranteed for everyone. Any decision to proceed should be made in an in-person consultation with a physician.
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