LinearZ Dual-Modality HIFU

Jeisys LinearZ high-intensity focused ultrasound featuring instant single-cartridge switching between Dot and Linear modes across 1.5mm to 4.5mm depths for tailored facial contouring and tightening.

Treatment Overview & Clinical Mechanism

LinearZ at ReYeonK Clinic is an advanced dual-modality high-intensity focused ultrasound (HIFU) lifting system by Jeisys Medical within our Non-Surgical Lifting & Skin Tightening center. Engineered to address asymmetric facial aging and mixed tissue types, LinearZ allows our physicians to toggle instantaneously between Dot Mode (discrete focal thermal coagulation points for strong ligament anchoring and SMAS elevation) and Linear Mode (continuous bulk thermal heating for smooth fat pad compaction and dermal collagen remodeling) within a single transducer cartridge across depths from 1.5 mm to 4.5 mm.

Because every face combines areas of volume excess (such as heavy lower jowls or submental fullness) with areas of volume deficiency (such as sunken mid-cheeks or temples), Dr. Lee Doochan, Dr. Kim Hyunsu, and Dr. Choi Hyunho customize your LinearZ protocol 1:1. Rapid bidirectional shot firing and optimized cartridge temperature control significantly reduce procedural discomfort while delivering consistent energy to the SMAS fascia and dermis.

Ideal Candidates & Target Concerns

Asymmetric lower-face fullness, heavy jowls, or double chin requiring Linear Mode fat de-bulking
Mid-face sagging, nasolabial fold descent, and brow laxity requiring Dot Mode SMAS anchoring
Patients concerned about cheek hollowing who need tailored depth and mode customization
Individuals seeking comfortable, fast HIFU sessions with minimal social interruption
Combination candidates pairing LinearZ with Density RF or ONDA Lifting

Clinical Specifications & Protocol Summary

Parameter	Clinical Details
Energy / Modality	Dual-Modality Focused Ultrasound (Instant Dot & Linear Mode Switching, Jeisys LinearZ)
Target Tissue Depth	Superficial Dermis (1.5–2.0 mm), Deep Dermis/Fat (3.0 mm), SMAS Layer (4.5 mm)
Typical Session Duration	25 to 45 minutes depending on shot count and topical anesthesia
Recommended Course	3 sessions at 4 to 8 week intervals, or maintenance every 4–6 months
Expected Recovery Window	Immediate return to daily routine; mild jawline tightness or tenderness for 1–4 days

Step-by-Step Procedure Process

1:1 Physician Facial Asymmetry & Volume Analysis: Mapping heavy fat zones (Linear Mode) vs. lax ligament vectors (Dot Mode).
Cleansing & Optional Analgesia: Gentle medical cleansing and topical numbing preparation if desired.
Dual-Mode LinearZ Ultrasound Delivery: Seamless execution of 4.5 mm, 3.0 mm, and 1.5–2.0 mm Dot and Linear passes.
Post-Procedure Calming Care: Hydrating barrier mask and broad-spectrum UV protection.

Post-Treatment Care & Clinical Safety Notice

Avoid washing with cold or ice water for the first 48 hours to preserve deep thermal collagen signaling.
Refrain from hot saunas, steam baths, alcohol, and vigorous exercise for 3 to 5 days.
Apply ceramide-rich moisturizers and SPF 50+ sunscreen daily.

Individual results vary depending on skin thickness, age, and tissue elasticity. Potential temporary side effects include localized erythema (redness), mild edema (swelling), tenderness, bruising, or transient sensory changes, which typically resolve within a few days to two weeks.

Frequently Asked Questions

Q. How does Linear Mode differ from Dot Mode during a LinearZ session?

Dot Mode concentrates focal ultrasound points along the 4.5 mm SMAS and 3.0 mm dermis to create lifting tension, while Linear Mode spreads gentle bulk heat across subcutaneous fat compartments to slim heavy jowls or double chins smoothly.

Q. Can LinearZ be combined with radiofrequency or skin boosters?

Yes. Pairing LinearZ with Density dual RF or collagen biostimulators under Skin Regeneration & Skin Boosters enhances both contour definition and dermal elasticity. Reach us via Contact Us.

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