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Name decoder · Energy device

Density: Jeisys’s 6.78 MHz RF device

덴서티

Checked 2026-10-22. Prepared with AI assistance from the sources listed below; not reviewed by a doctor. Not medical advice.

덴서티 (Density) is a 6.78 MHz radiofrequency device from Jeisys Medical in Korea, with monopolar and bipolar tips; its US filing also lists the names DENZA and DENSITY Noir.[1][2]

Its US clearance covers electrocoagulation and hemostasis, with no lifting or wrinkle claim. It is not Thermage: Thermage FLX was only the regulatory predicate in Density’s first US filing.[1][3]

At a glance

Maker
Jeisys Medical, Korea[2]
Energy
Radiofrequency at 6.78 MHz; monopolar and bipolar tips[1]
Names
DENSITY, DENZA, DENSITY Noir[1]
US filings
K230663 (August 14, 2023)[3]; K250065 (July 8, 2025)[1]. These are 510(k) clearances; the maker’s page says “approved”.[2]
Korea
The maker says it is approved by Korea’s MFDS; we did not confirm the permit number.[2]
Also called
DENZA (listed with Density in a US FDA filing)
Models and versions
Density Noir

In Korean searches

Among the 33 treatments we track on Naver, Density ranks #17 by Korean search interest (index 10; the most-searched = 100). The question people add most often: “How much?” (4.2% of its searches). Google searches in Korea for its main Korean name: +6% in Jul 2026–Sep 2026 compared with Oct 2025–Dec 2025.

From the Korea Treatment Radar, October 2026. Search interest, not treatments performed.

Not the same as

  • Thermage FLX (Solta): a different 6.78 MHz RF device, named as the regulatory predicate in Density’s first US filing.[3]
  • Potenza: also made by Jeisys, but an RF microneedling device.

Questions to ask the clinic

  1. Is this Density, Density High or Density Noir?
  2. Is the tip genuine and single-use? Can I check its authentication number?
  3. Which tip, and how many shots?
  4. Will you use monopolar, bipolar or both modes?

Sources

  1. US FDA 510(k) K250065: DENSITY, DENZA, DENSITY Noir (Jeisys Medical), July 8, 2025↩1↩2↩3↩4↩5
  2. Jeisys Medical: Density product page, checked October 22, 2026↩1↩2↩3↩4
  3. US FDA 510(k) K230663: Density (Jeisys Medical), August 14, 2023; predicate Thermage FLX K170758↩1↩2↩3

Manufacturer pages establish what a product is, not that it works. Regulatory filings describe what a regulator cleared or approved in that country. Glow in Seoul editorial; no clinic paid for or reviewed this page. See our transparency page.