Density Noir monopolar and bipolar modes — how do they differ, and how do you choose?
Read about Density Noir and you keep running into “monopolar,” “bipolar” and “MONO+BI.” They sound technical, but it comes down to one thing: how deep, and how wide, the heat goes.
The short answer
With monopolar RF the current passes through the body to a pad placed farther away, heating broadly into deep layers. With bipolar RF the current stays between two electrodes inside the tip, heating the shallow layer densely. Density Noir can use either one alone, or fire monopolar then bipolar within a single shot (MONO-BI sequential heating, Korean patent 10-2640900). It also has a Gentle mode, which does not need hard pressure on the skin, and an Infinity mode. The question is not which mode is better but which layer we are treating. At Miso Clinic, 4F Bombom Building, 125 Dongdeok-ro, Jung-gu, Daegu (Exit 1, Kyungpook Nat'l Univ. Hospital Station), +82-53-428-2700, I choose the mode after we settle your concern in consultation.
How are monopolar and bipolar different?
| Type | Current path | Main layer treated | Good fit for |
|---|---|---|---|
| Monopolar | Tip → body → pad placed farther away | Deep dermis toward the subcutaneous layer | Sagging, firmness |
| Bipolar | Between two electrodes in the tip | Shallow layer | Texture, fine lines |
| MONO+BI | One after the other within one shot | Deep + shallow layers | Sagging and texture together |
A simple way to remember it: monopolar is “wide and deep,” bipolar is “shallow and dense.” The heat reaches different layers, so the change you notice in your face differs too.
What is MONO+BI sequential heating?
This is the technology Noir is named for. Within one shot, monopolar RF heats the deep layer first, then bipolar RF heats the shallow layer. The manufacturer states it holds a patent (10-2640900) for this method.
Many faces have sagging and texture concerns at once, so this is often where I start. That said, there is no comparison study yet showing that “doing both is always better.”
What are Gentle mode and Infinity mode?
Both are treatment modes new to Noir. Gentle mode lets output go out without pressing the tip hard into the skin, so I use it to ease the load on thin skin or where bone sits close to the surface.
Infinity mode is the other treatment mode the manufacturer presents alongside Gentle mode. Which one I use depends on the area and how thick the skin is.
Which mode for which face?
| Concern | Considered first | Why |
|---|---|---|
| Sagging jawline or cheeks | Monopolar or MONO+BI | The heat needs to reach deep layers |
| Sagging plus texture and fine lines | MONO+BI | Two layers in one pass |
| Thin skin, mainly fine lines | Bipolar (BOOST tip) | Dense work in the shallow layer |
| Thin skin close to bone | Gentle mode | Less pressure on the skin |
The final choice comes from looking at your face in person. I sometimes switch modes from one area to another within the same face.
Does the pain change with the mode?
The feeling does. Monopolar is closer to a heavy heat deep down; bipolar feels more like a prickle near the surface. Noir sprays gas cooling before and after shots, with cooling strength set at 5 levels.
I ask about the heat in each area and adjust output and cooling to match. Heat is the signal that helps prevent burns, so I keep numbing light.
If the mode is right, is the result settled?
No. The result depends on more than the mode: whether your concern is the kind RF can help, and whether the tip, shot count and settings for each area fit. A face that has lost volume will not be filled by any mode.
For how Noir differs from another RF device such as XERF, see Density Noir vs XERF.
Density Noir modes: frequently asked questions
Is Density Noir monopolar or bipolar?
Both. It can use monopolar or bipolar alone, or MONO+BI, which fires the two in sequence within one shot.
Is monopolar better than bipolar?
Neither ranks above the other; they treat different layers. Deep sagging leans toward monopolar, shallow texture toward bipolar.
Does Gentle mode hurt less?
It does not need hard pressure on the tip, so I use it to ease the load on thin areas. Pain varies by person and area, so I do not tell you “it will not hurt.”
Where can I discuss Density Noir modes in Daegu?
At Miso Clinic, 4F Bombom Building, 125 Dongdeok-ro, Jung-gu, Daegu (Exit 1, Kyungpook Nat'l Univ. Hospital Station), +82-53-428-2700.
Read next
Product pages
Treatment page: DENSITY NOIR — RF lifting with ALPHA and BOOST tips
Who wrote this
Written and reviewed by Lee Chi-Hak, MD, director of Miso Clinic, Daegu. The treatment standards and injection design set out here are the ones we use in practice.
| 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 |
| Hours | Weekdays 11:00–19:00 (lunch 13:00–14:00) / Saturday 10:00–16:00 (no lunch break) / Closed Sundays and public holidays |
| Columns | All clinical columns |
| Reference library | All booster and device references |
References
- DENSITY NOIR product materials and brochure — Jeisys Medical Inc. Four treatment steps (consultation on skin condition and concerns → RF MODE selection → Tip selection for the RF Mode and area → finishing care), MONOPOLAR, BIPOLAR and MONO+BI RF, MONO-BI RF Sequential Heating Technology (Korean patent 10-2640900), 8 tip types, real-time impedance feedback, 5-level cooling, Temperature Monitoring and Cooling Pulse, Infinity and Gentle modes, up to 400 W. Images are used with the manufacturer’s permission; the brochure’s model photos and promotional QR code were removed.
- Korean MFDS approval report for DENSITY NOIR and the BOOST tip — Medical Newspaper (Uihak Sinmun), 2026-09-04. Successor body to DENSITY HIGH, improved cooling, new Gentle and Infinity modes; the BOOST tip is the first bipolar-dedicated tip in the Density line.
- Korean medical advertising law — Medical Service Act Art. 56(2) (no treatment testimonials, no comparisons with other clinics, no superlatives), Art. 27(3) (no inducing patients for profit). This is why this column carries no prices, reviews, before-and-after photos or promotional wording.
- Miso Clinic treatment policy — DENSITY NOIR introduced October 2026, ALPHA tip as default with BOOST tip on hand, genuine Jeisys Medical tips used exclusively, authenticity certificate (card) issued after treatment, tip seal and lot number checked together on request, output and cooling adjusted by asking about heat in each area, numbing kept light, no RF with metal or electronic implants, pregnancy or inflammation, results judged with same-condition photos after 2–3 months.
Everything in this column 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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