LinearZ vs Ultherapy: HIFU lifting and recovery at Seoul clinics
LinearZ and Ultherapy are offered at various dermatology clinics across Seoul, including UH CELL Clinic Gangnam, one of 20 clinics compared in the table below for sessions, downtime and recovery time.
LinearZ and Ultherapy compared on the same rows, from clinic-published pages in Seoul. 20 clinics list these treatments. Checked on 2026-10-27.
8 sources Checked
- Question
- How do LinearZ and Ultherapy compare when choosing a non-surgical HIFU lift at a Seoul clinic, and does the recovery differ between the two?
- Treatments compared
- LinearZ, Ultherapy
Comparison
| LinearZ | Ultherapy | |
|---|---|---|
| What it is | Linear-focused HIFU lifting device made by Jeisys Medical, approved by Korea's MFDS, using interchangeable dot and line energy cartridges. | Microfocused ultrasound with visualization (MFU-V) device made by Merz under the Ulthera brand, FDA cleared for lifting the brow, neck, submental skin and smoothing lines on the chest. |
| How it works | Delivers linear or dot mode ultrasound energy through cartridges to create thermal coagulation points in the dermis and fibrous septa, prompting collagen contraction and later new collagen formation. | Uses built-in ultrasound imaging to view tissue to about 8 mm deep, then focuses ultrasound energy at set depths of 1.5, 3.0 and 4.5 mm to cause immediate collagen contraction and later new collagen and elastin production. |
| Energy depth options | Four cartridge families (Basic, Essential, Core, Contour) covering depths from about 1.5 mm to 13 mm, selected by cartridge rather than dial. | Three standard transducer depths of 1.5 mm, 3.0 mm and 4.5 mm; a newer Ultherapy PRIME protocol, cleared in 2025, targets skin laxity on the arms and abdomen. |
| Treatment time | About 20 to 40 minutes per area after 20 to 30 minutes for topical numbing cream to take effect, per clinic treatment pages. | About 60 to 90 minutes for face and neck and about 30 minutes for the chest, per clinic treatment pages. |
| Sessions | Clinic pages often suggest 3 or more sessions spaced 1 to 3 months apart for cumulative lifting. | Often performed as a single session per treated area, with some clinics repeating after about a year for maintenance. |
| Downtime | Little to none reported; clinic pages describe brief warmth and redness fading within hours and normal activity resuming the same day. | Little to none; temporary redness, swelling, tingling or tenderness are reported, resolving within hours to a few days in most cases. |
| Flying after | No restriction specific to LinearZ was found in the sources reviewed; it is treated as a no-downtime procedure that does not require delaying travel. | No restriction specific to Ultherapy was found in the sources reviewed; sources describe immediate return to normal activity, which clinics take to include travel. |
| How long it lasts | Clinic pages cite results lasting about 6 to 12 months, extendable with maintenance sessions. | Lifting effects build over 2 to 6 months after treatment and are described as lasting about a year. |
Clinics
| Clinic | District | LinearZ on the menu | Ultherapy on the menu | Official page | Checked on |
|---|---|---|---|---|---|
| BLS Clinic | Gangnam | Ultherapy | blsclinic.com | 2026-10-20 | |
| Delight Dermatology Clinic | Apgujeong | Ultherapy | seouldermatologyclinic.com | 2026-10-20 | |
| Delphic Clinic | Gangnam | Ultherapy | delphicclinic.com | 2026-10-20 | |
| Doje Clinic | Gangnam | Ultherapy | cheongdamaestheticclinic.com | 2026-10-20 | |
| Dr. DAMI Clinic | Gangnam | Ultherapy | damiclinic.com | 2026-10-20 | |
| Dr. E-Laser Dermatology | Gangnam | Ultherapy | drelaser.com | 2026-10-20 | |
| EGGCLINIC | Seocho | LinearZ | Ultherapy | eggclinicseoul.com | 2026-10-20 |
| Ever Skin Clinic | Apgujeong | Ultherapy | dermatologistsgangnam.com | 2026-10-20 | |
| Gangnam Dermatology, Planew Clinic | Seocho | Ultherapy | planewclinic.com | 2026-10-20 | |
| Gold J Clinic | Gangnam | LinearZ | Ultherapy | goldjclinic.com | 2026-10-20 |
| Jfeel Dermatology Clinic, Gangnam | Gangnam | Ultherapy | jfeelclinic.com | 2026-10-20 | |
| Lalian Cheongdam Clinic | Gangnam | LinearZ | Ultherapy | lalian-clinic.com | 2026-10-20 |
| Liftique | Seocho | Ultherapy | liftique.co.kr | 2026-10-20 | |
| LOUAVE Clinic | Gangnam | Ultherapy | seoulskinclinic.co | 2026-10-20 | |
| Nest Clinic Gangnam | Seocho | LinearZ | Ultherapy | seoulskinclinicforforeigners.com | 2026-10-20 |
| Peau Reve Clinic | Gangnam | Ultherapy | cheongdamskinclinic.com | 2026-10-20 | |
| Reberry clinic myeongdong | Myeongdong | Ultherapy | myeongdongskinclinicreberry.com | 2026-10-20 | |
| UH CELL Clinic Gangnam | Gangnam | LinearZ | Ultherapy | uhcell.com/en | 2026-10-20 |
| UMI Skin Clinic Myeongdong | Myeongdong | Ultherapy | myeongdongmedspa.com | 2026-10-20 | |
| Yaan Clinic | Gangnam | Ultherapy | enyaanclinic.com | 2026-10-20 |
Clinic details
UH CELL Clinic Gangnam
- District
- Gangnam
- LinearZ on the menu
- LinearZ
- Ultherapy on the menu
- Ultherapy
- Checked on
- 2026-10-20
Sources note
Device level facts come from the manufacturer pages for LinearZ (Jeisys Medical) and Ultherapy (Merz/Ulthera), a trade distributor listing, and a peer reviewed review of microfocused ultrasound with visualization; timing and downtime details also draw on treatment description pages from dermatology clinics and a hospital system page, none of which are among the 20 clinics in the comparison table.
Frequently asked questions
| Question | Answer |
|---|---|
| Is LinearZ the same technology as Ultherapy? | No. LinearZ is a Korea MFDS approved HIFU device made by Jeisys Medical, while Ultherapy is a separately FDA cleared microfocused ultrasound system made by Merz, and a Seoul clinic may offer one, both, or these alongside other HIFU or RF devices. |
| Which treatment needs more sessions? | Clinic pages describe LinearZ as often given in a series of 3 or more sessions over a few months, while Ultherapy is performed as a single session per treated area in most clinic protocols. |
| How soon can I fly home after either treatment? | No published flight restriction specific to either treatment turned up in the sources reviewed, and both are described as causing little to no downtime, so same day travel is treated as acceptable once any redness has settled. |
| Will I see results right away? | Both treatments can produce some immediate tightening from collagen contraction, but the fuller lifting effect from new collagen builds over time, with LinearZ clinic pages describing continued improvement over 1 to 3 months and Ultherapy sources describing peak results around 3 to 6 months. |
| Is one treatment more painful than the other? | Clinic pages describe LinearZ discomfort as mild in most cases, sometimes delivered without numbing cream though topical anesthetic is applied beforehand in many clinics; Ultherapy sources also describe some discomfort during treatment, and no pain-free claim was found for either device. |
| How long do the results last? | LinearZ clinic pages cite results lasting about 6 to 12 months, and Ultherapy sources describe effects lasting about a year, with maintenance sessions available for both. |
Sources
- primary-brand-record Jeisys Medical, LinearZ product page · Checked
- primary-brand-record MedicalExpo, Jeisys Medical LinearZ listing · Checked
- primary-brand-record Ultherapy for physicians, optimized neocollagenesis · Checked
- primary-brand-record Cleveland Clinic, Ultherapy procedure page · Checked
- primary-brand-record Practical Dermatology, FDA clears Ultherapy PRIME for skin laxity on arms and abdomen · Checked
- primary-academic PMC, review of microfocused ultrasound with visualization · Checked
- primary-brand-record Reberry Clinic, LinearZ treatment description page · Checked
- primary-brand-record Allure Korea, new dermatology procedure recommendations · Checked