When people first look into Ulthera, a common question is not "which clinic should I go to?" but "how does the device work?" Price differences and pain differences both start from this question. What sets Ulthera apart from other ultrasound lifting devices is its DeepSee™ real-time imaging technology. Being able to look inside the skin before treatment, and to check during treatment that energy is being delivered to the intended layer, is where it differs from other HIFU devices.

What Changes Without DeepSee™
A typical HIFU device fires ultrasound energy at a set depth, but it is hard for the practitioner to check in real time where the energy actually lands. Skin thickness differs from area to area, and even within the same area there are large individual differences. Around the eyes, even a 0.5 mm difference can affect the result, and the thickness of subcutaneous fat above and below the cheekbone varies from person to person.
Ulthera's DeepSee™ has an ultrasound imaging system built into the treatment handpiece, which displays a cross-sectional image of the skin in real time before energy is delivered. This lets the practitioner check the actual distance to the SMAS (fascia) layer and judge whether the energy points are focused on the correct layer, avoiding nerves and blood vessels. Without this step, energy may be delivered shallower or deeper than intended, which can reduce the effect and increase unnecessary tissue stimulation.
Why the SMAS Layer Is Targeted
The main cause of facial sagging lies not in the skin surface but in the loosening of the fascia beneath it, the SMAS layer. As collagen decreases and gravity accumulates, this layer settles downward, and the skin of the cheeks, jawline and area below the cheekbones sags with it. This is why treatments that stimulate only the epidermis or dermis tend to stop at improving elasticity.
Ulthera uses focused ultrasound to create precise thermal coagulation points in the SMAS layer, and this stimulation induces a collagen regeneration response. It has FDA clearance because the safety and effectiveness of this mechanism have been clinically reviewed. However, collagen regeneration is a process that unfolds over several months rather than immediately after treatment, so when and how much the effect appears may vary with each person's skin condition.

The Difference from Shrink: Not Which Is Better, but Which Fits
Ulthera and Shrink both belong to the HIFU (high-intensity focused ultrasound) family. However, their device structure and design purpose differ. Ulthera is equipped with the DeepSee™ imaging system, which can visualize the skin layers during treatment, and it is a device cleared by the US FDA. Clinically reviewed data on the accuracy of targeting the SMAS layer have accumulated. Shrink is a HIFU device developed in Korea; its cost per shot is lower and it tends to be less painful, so it is often used for regular elasticity maintenance.
If you have deeper sagging and expect a stronger lifting effect, Ulthera may be considered, and if you want overall elasticity maintenance or periodic care, Shrink can be a reasonable choice in terms of cost. This judgment depends on skin thickness, degree of sagging and purpose, so it is hard to generalize without a diagnosis.
Repic Clinic's Design Ulthera: Same Device, Different Design
Before Ulthera treatment, Repic Clinic in Gangnam measures the patient's skin thickness, location of sagging, facial proportions and bone structure with the Meta View and Mark-Vu diagnostic devices, and then operates a protocol in which the doctor personally designs the treatment positions and energy levels. This is called "Design Ulthera," and it is distinguished from the approach of delivering energy uniformly according to a fixed guideline, as with standard Ulthera.
Even for the same Ulthera shot, the position and energy intensity differ from person to person, and the doctor determines that design directly, like a blueprint. This approach of linking diagnostic data to the treatment plan provides more meaningful information when it works together with DeepSee™'s real-time imaging.

Repic Clinic in Gangnam is located at 318 Gangnam-daero, Gangnam-gu, Seoul, B1 and 2F. In addition to Ulthera, it offers InMode lifting based on RF energy, ONDA lifting using Cool Wave™ microwave technology, and Thermage FLX based on radiofrequency, so multiple options can be discussed according to your skin condition and goals.
Related Official Information
You can find more details on the official website.
Repic Clinic official website →
※ This content is for general information only and does not replace a medical diagnosis or treatment. Please consult a medical professional before any procedure. Results, downtime and side effects vary from person to person.