The short answer
- Most names you hear at Korean clinics are not treatment types — they're device brand names. Once you know the underlying tech, 20+ names collapse into just four categories.
- Ultrasound (HIFU) = Shrink · Ulthera · LinearZ / Radiofrequency (RF) = Thermage · Oligio · Volnewmer · Density · InMode
- Laser = Laser Toning · Pico Toning · Fraxel / Injectables = Rejuran · Skin Boosters · Microbotox · Fillers
- ⚠️ Names change by country. Shrink's export name is ULTRAFORMER MPT, Volnewmer's North American name is EVERESSE. Searching the Korean name abroad gets you nowhere.
- ⚠️ Korea's MFDS-approved indications are often narrow, like "eyebrow lifting." When a clinic says "V-line lifting," that's marketing — not the regulatory label.
Here’s the thing about walking into a Korean dermatology clinic as a foreigner: the hardest part isn’t the price. It’s that you have no idea what anyone is talking about.
The consultant says, “We’ll do 300 shots of Shrink, add Oligio, and you can come back for Rejuran next time.” Three words, three completely different technologies — ultrasound, radiofrequency, and an injectable — and nobody bothers to tell you that.
This article is your translator. I’m not covering prices. I’m covering what each thing actually is.
Why Korean Treatment Names Make Zero Sense (at First)
The names aren’t inherently hard. The problem is that they’re a different kind of name entirely. Korea’s aesthetic device market is brutally competitive, so clinics don’t say “we do RF skin tightening.” They say “we have Volnewmer.” The device brand name became the menu item.
The Three Layers of Naming
- Technology — High-Intensity Focused Ultrasound, monopolar RF, Q-switched laser (medical terms)
- Device brand — Shrink, Thermage, InMode (the names manufacturers give their machines)
- Clinic menu name — Tune Face, Linear Firm, Skin Booster (names that only make sense in Korea)
That third layer is where things go sideways. Tune Face isn't a device — it's a treatment brand name coined by Alma Korea. The actual machine is Accent Prime. Linear Firm isn't a device either — it's the treatment name for Jeisys Medical's HIFU machine. These names won't show up if you Google them in English.
Here's the Secret: It's Just Four Categories of Tech
Nearly every name you’ll hear at a Korean clinic fits into one of these four buckets. Memorize this table and you can actually follow the conversation.
🔎 16 Common Korean Aesthetic Treatments — Sorted by Technology
| Category | What’s the energy? | Names you’ll hear |
|---|---|---|
| Ultrasound (HIFU) | Focused ultrasound creates thermal coagulation points deep in the skin | Shrink · Shrink Universe · Ulthera · LinearZ (Linear Firm) |
| Radiofrequency (RF) | Electric current passes through tissue — resistance creates heat that warms the dermis | Thermage · Oligio · Volnewmer · Density · InMode · Tune Face |
| Laser | Specific wavelengths of light absorbed by pigment or water | Laser Toning · Pico Toning · Fraxel |
| Injectables & Physical | Substances placed into the skin, or mechanical pulling/exfoliation | Rejuran · Skin Boosters · Microbotox · Fillers · Juvelook · Thread Lifts · Aquapeel |
The Ultrasound Crew: Shrink, Ulthera & LinearZ
HIFU (High-Intensity Focused Ultrasound) works like a magnifying glass concentrating sunlight — it focuses ultrasound waves onto a single point inside your skin, creating a thermal coagulation point (TCP) above 60°C. The surface stays untouched while the deep layers get zapped, so there’s no need for a cooling device on the epidermis.
🔊 HIFU 3-Way Comparison
| Name | Manufacturer | Depth | Key Feature | MFDS-Approved Indication |
|---|---|---|---|---|
| Ulthera (Ultherapy) | Merz (US/Germany) | 1.5 / 3.0 / 4.5mm | Real-time ultrasound imaging to confirm depth (DeepSEE). The only one with this. | Eyebrow, jawline, and upper chest lifting; décolleté wrinkle improvement |
| Shrink Universe | Classys (Korea) | 1.5 / 2.0 / 3.0 / 4.5mm (+body 6·9mm) | #1 HIFU in Korea by market share. No imaging. Wide cartridge selection. | Per cartridge: eyebrow lifting / crow’s feet, perioral, and neck wrinkle improvement |
| LinearZ (formerly Linear Firm) | Jeisys Medical (Korea) | 1.5 | Switches between DOT and LINEAR modes without changing cartridges | Eyebrow lifting, thigh skin elasticity improvement |
Why 4.5mm is the depth everyone talks about. That’s the SMAS (Superficial Musculoaponeurotic System) layer — the exact layer a surgeon physically pulls during a facelift. This is why HIFU gets called a “non-surgical facelift.” The logic actually checks out.
What to ask at the clinic
- Ask for both the shot count and which cartridge types they're using. "300 shots" alone tells you nothing about what depth was treated.
- To verify authenticity, ask to see the cartridge packaging in person.
- Shrink has no US FDA clearance. The company explicitly limits its North American distributor to Canada. If someone tells you "FDA-approved Shrink," ask them to show you the clearance number.
The Radiofrequency Crew: Thermage, Oligio, Volnewmer, Density & InMode
RF (radiofrequency) passes electric current through tissue — the tissue’s own resistance generates heat. Unlike HIFU, which focuses on a single point, RF works by heating a broad area. So it’s less about lifting and more about tightening and improving skin texture. That’s why most RF devices include a cooling mechanism to protect the surface.
⚡ Monopolar RF 4-Way — The Original and the Challengers
| Name | Manufacturer | Frequency | US 510(k) | Notes |
|---|---|---|---|---|
| Thermage FLX | Solta Medical (US) | 6.78 MHz | K170758 | The original. Periorbital and facial wrinkle treatment is explicitly in the cleared indication — the only one with this wording. |
| Oligio / OligioX | Wontech (Korea) | 6.78 MHz | K221989 · K243929 | Cleared using Thermage as predicate. No clinical trials conducted. |
| Volnewmer | Classys (Korea) | 6.78 MHz | K240248 | Water-cooled continuous cooling. Targets papillary to reticular dermis. |
| Density | Jeisys Medical (Korea) | 6.78 MHz | K230663 | Alternates monopolar and bipolar. The only Korean device with downtime data from a published study. |
All three Korean devices cleared the US 510(k) process using Thermage as their predicate device, and their regulatory filings explicitly state that “clinical trials were deemed unnecessary and were not conducted.” That doesn’t mean they’re bad. It means “FDA-cleared” carries less weight than clinics want you to think.
InMode Is Not a Treatment Name
InMode is the equipment platform from Israel’s InMode company. The actual treatment is completely different depending on which handpiece is used.
| Handpiece | Technology | Invasive? | Downtime |
|---|---|---|---|
| FX / BodyFX | Bipolar RF + vacuum suction massage | Non-invasive | Minimal |
| Forma | Temperature-controlled bipolar RF | Non-invasive | Minimal |
| Morpheus8 | Fractional RF via microneedles | Needles go in (up to 7mm) | 2–5 days |
In US and European clinics, there’s no menu item called “InMode treatment” — they name the handpiece. If a Korean clinic tells you “let’s do InMode,” you need to ask which handpiece. Morpheus8 involves needles and the downtime is a completely different ballgame.
The Laser Crew: Laser Toning, Pico Toning & Fraxel
Lasers fall into two camps: pigment-busting and skin-resurfacing.
💡 Pigment & Texture Lasers — 3 Types
| Name | Technology | Primary Target | Key Point |
|---|---|---|---|
| Laser Toning | Q-switched Nd:YAG 1064nm at low power, repeated passes | Melasma, sunspots | Doesn’t peel the surface — no downtime. But needs ~10 weekly sessions |
| Pico Toning | Picosecond (10⁻¹² sec) pulses shatter pigment via photoacoustic shock | Melasma, sunspots, tattoos | Less thermal damage = lower risk of hyperpigmentation |
| Fraxel / Fractional | Microscopic thermal columns drilled into skin to trigger regeneration | Scars, pores, skin texture | Non-ablative (1550nm) vs ablative (CO₂) have completely different recovery times |
Laser Toning Is an Asian Protocol
This method — low-power Q-switched Nd:YAG repeated over many sessions — is described in medical literature as "the new standard for treating Asian melasma." The once-weekly × 10-session protocol isn't common in Western clinical practice. A known side effect is punctate hypopigmentation (spotty lightening), and there are also concerns about the lack of long-term follow-up data.
⚠️ Fraxel is a brand name. It’s Solta Medical’s product, but Korea uses it as a catch-all term for any fractional laser. When a clinic says “Fraxel,” ask whether it’s non-ablative (1550nm) or CO₂ ablative. Recovery ranges from a few days to two weeks depending on the answer.
The Injectable Crew: Rejuran, Skin Boosters, Microbotox & Fillers
This is the most confusing zone. All these injections look similar but the substance going in is completely different each time.
💉 Injectable Treatments — What's Actually in the Syringe
| Name | What’s Inside | Mechanism | Onset |
|---|---|---|---|
| Skin Booster | Hyaluronic acid (non-cross-linked) | Increases water retention (physical) | Immediate |
| Rejuran | Salmon testis-derived polynucleotides (PN) | Stimulates fibroblasts to create a regenerative environment | Weeks |
| Microbotox | Botulinum toxin (highly diluted) | Suppresses micro-muscle fibers and glands in the dermis | 3–7 days |
| Juvelook / Sculptra | PDLLA / PLLA (collagen boosters) | Foreign-body response triggers new collagen synthesis | 4–12 weeks |
| Fillers | Cross-linked hyaluronic acid | Physically fills volume | Immediate |
Microbotox is not the same thing as Botox. Regular Botox goes into the muscle to paralyze expression muscles. Microbotox (aka skin Botox) is highly diluted and injected into the dermis in dozens of tiny droplets, targeting pores, oil, and skin texture — not expression. The goal is to leave your face moving normally. Fair warning: this injection technique is off-label everywhere in the world — no regulator has approved it.
And the Rest: Thread Lifts & Aquapeel
- Thread Lifts (PDO threads) — Dissolvable threads placed under the skin to physically pull tissue. Cog threads (barbed) provide immediate lift. Mono threads (smooth) aim to stimulate collagen. PDO is the most common material; it dissolves over 6–8 months. Expect swelling and bruising for up to 5 days and avoid intense exercise for 2 weeks.
- Aquapeel / Hydrafacial — Not an energy device — it’s mechanical exfoliation. A spiral tip creates a vortex that suctions out dead skin and sebum while pushing serum in. Essentially zero downtime. One catch: Hydrafacial is a US brand and Aquapeel is a Korean generic term — they’re not the same thing.
Same Machine, Different Country, Totally Different Name
This is probably the most practically useful part of this entire article. If you search the Korean name abroad, you’ll often get nothing.
🌏 Treatment Name Cross-Reference — Korean · English · Japanese · Chinese
| Korean | English (export name) | Japanese | Mainland China | Taiwan |
|---|---|---|---|---|
| 슈링크 유니버스 | ULTRAFORMER MPT | ウルトラフォーマーMPT | 韩版超声刀 | 海芙音波媚必提 |
| 울쎄라 | Ultherapy | ウルセラ | 超声刀(unapproved) | 極線音波拉皮 |
| 써마지 FLX | Thermage FLX | サーマクール | 热玛吉 | 鳳凰電波 |
| 올리지오 | Oligio | オリジオ | 韩版热玛吉 | 玩美電波 |
| 볼뉴머 | EVERESSE (North America) | ボルニューマ | (no Chinese name) | 海芙電波 |
| 덴서티 | DENSITY | デンシティ | (no Chinese name) | 無雙電波 |
| 모르페우스8 | Morpheus8 | モルフェウス8 | 黄金微针 | 墨菲斯電波 |
| 리쥬란 | Rejuran (PN booster) | リジュラン | 丽珠兰 / 三文鱼针 | 鮭魚針 |
| 물광주사 | skin booster | 水光注射 | 水光针 | 水光針 |
| 스킨보톡스 | Microbotox | マイクロボトックス | 微滴肉毒 | 微滴注射 |
| 쥬베룩 | Juvelook | ジュベルック | (unapproved) | 喬雅露 |
| 스컬트라 | Sculptra | スカルプトラ | 塑妍萃 | 舒顏萃 |
| 실리프팅 | thread lift | 糸リフト | 埋线提升 / 线雕 | 埋線拉提 |
| 레이저토닝 | laser toning | レーザートーニング | 调Q激光 | 淨膚雷射 |
| 피코토닝 | picosecond laser | ピコトーニング | 皮秒激光 | 皮秒雷射 |
| 프락셀 | Fraxel / fractional | フラクショナルレーザー | 点阵激光 | 飛梭雷射 |
| 아쿠아필 | hydradermabrasion | ハイドラフェイシャル | 小气泡 / 海菲秀 | 水飛梭 / 海菲秀 |
| 필러 | dermal filler | ヒアルロン酸注入 | 玻尿酸 | 玻尿酸 |
Three things to know when reading this table:
- In Japan, the phonetic transliteration of the brand name IS the treatment name. Except for Thermage — it’s not 「サーマージ」, it’s 「サーマクール」. Say 「サーマージ」 in a Japanese clinic and nobody will know what you mean.
- Taiwan runs on an 電波 (RF) vs 音波 (ultrasound) binary. Learn these two characters and you can read any Taiwanese clinic menu. Taiwan’s brand-name Chinese characters are different from mainland China’s — simplified conversion won’t work. (Thermage: Taiwan 鳳凰電波 vs mainland 热玛吉.)
- Mainland China’s regulations are baked into the names. 超声刀 has no approved device in China — it’s a gray zone. Approved domestic devices use a different name: 超声炮. This is why mainland Chinese customers ask “do you have 超声刀?” with a specific tone — there’s regulatory history behind the question.
Downtime: Separating Facts from Marketing
“Zero downtime” is often a marketing line. Here’s what I could actually verify from manufacturer data, regulatory documents, and peer-reviewed studies.
⏱️ Recovery Time — Verified vs. Unverified Claims
| Treatment | Recovery | Evidence Level |
|---|---|---|
| Morpheus8 | 2–5 days | Peer-reviewed study (ASJ 2019) — quantitative data available |
| Thermage FLX | Erythema/edema resolves within 24 hours | Manufacturer’s official documentation |
| Density | 92% reported no downtime | US multi-center retrospective study (2026) |
| Thread Lifts | Swelling/bruising up to 5 days, avoid exercise 2 weeks | Patient education materials (Cleveland Clinic) |
| Ablative CO₂ Fractional | 4–10 days recovery, erythema ~2 weeks | Medical textbook (StatPearls) |
| Non-ablative Fraxel (1550nm) | Mild, short-term; adverse event rate ~5% | Peer-reviewed study |
| Laser Toning · Pico Toning | Essentially none (epidermis preserved) | Systematic review |
| Aquapeel | Essentially none | Manufacturer data (no independent verification) |
| HIFU (Shrink·Ulthera·LinearZ) | “Immediate return to daily activities” | ⚠️ Qualitative description only — no quantitative data found |
| Oligio · Volnewmer | ⚠️ Unverified | No data in manufacturer docs, regulatory filings, or published studies |
| Rejuran · Juvelook | Papules/edema for several days (mild) | ⚠️ No standardized recovery duration found |
Just Ask These Three Questions at the Clinic
- "Is this ultrasound or radiofrequency?" — This one question instantly reveals whether the person you're talking to actually understands the technology.
- "What's the approved indication?" — Most Korean HIFU devices are MFDS-approved for "eyebrow lifting." V-line, jawline, and full-face lifting claims go beyond the approved labeling (Ulthera is the exception — jawline is included).
- "Is that FDA approval or 510(k) clearance?" — 510(k) clearance means the FDA found the device "substantially equivalent" to an existing one — not that efficacy was proven. Shrink and LinearZ have no US clearance at all.
Sources
- MFDS Medical Device Electronic Civil Service — emedi.mfds.go.kr (approval numbers and indication text)
- US FDA 510(k) Database / openFDA — accessdata.fda.gov (K170758 Thermage, K231790 Morpheus8, K221989 Oligio, K240248 Volnewmer, K230663 Density, K243035 Ulthera)
- US FDA — FDA-Approved Dermal Fillers (approved filler materials list)
- Manufacturer sites — Classys · Ultherapy · Thermage · LinearZ · Rejuran
- Dayan E et al., Aesthetic Surgery Journal 2019 (Morpheus8 downtime)
- Kwon HH et al., Medicina 2022;58(7):936 (laser toning systematic review)
- StatPearls, Ablative and Non-Ablative Fractional Laser (fractional recovery times)
- Japan MHLW (2024-06) medical HIFU summary · Taiwan and mainland China local clinic and beauty media notation survey
Device approval data is current as of August 2026. Approved indications and clearance status are subject to change.