Cool Soniq and Coolfase in Korea: Cooling-Based Lifting Treatments

Cool Soniq and Coolfase are Korean lifting devices that combine heat-based treatment with built-in cooling: Cool Soniq is a HIFU (focused ultrasound) device, while Coolfase is a monopolar radiofrequency device. The cooling is designed to protect the skin surface and reduce discomfort while heat reaches deeper layers, so both are often chosen by people who are sensitive to pain and want little or no downtime.
Both devices are made by Asterasys, a Korean company known for its Liftera HIFU series. They are increasingly offered in Gangnam clinics as alternatives to established HIFU and RF devices.
How Cool Soniq Works
Cool Soniq focuses ultrasound energy into deeper layers, including the dermis and SMAS, creating tiny thermal points that stimulate collagen contraction and regeneration. A cooling system keeps the contact surface cool, which aims to protect the epidermis and reduce the heat sensation during treatment.
- Technology: HIFU with surface cooling.
- Areas: forehead, eye area, cheeks, jawline, double chin, nasolabial folds, marionette lines and neck.
- Effect: gradual lifting and improved elasticity over weeks to months.
How Coolfase Works
Coolfase delivers monopolar RF energy to heat the dermis, tightening collagen and stimulating new collagen production. The tip is kept cold so the surface is protected while heat reaches deeper layers, and the manufacturer describes temperature control features designed to prevent overheating.
- Technology: monopolar RF with cooling.
- Areas: full face, eyes and neck, depending on tips and protocol.
- Effect: firmer, smoother skin that builds over one to three months.
Cool Soniq vs Coolfase
| Feature | Cool Soniq | Coolfase |
|---|---|---|
| Technology | HIFU with cooling | Monopolar RF with cooling |
| Main depth | Deeper layers including SMAS | Dermis |
| Best for | Lift, jawline, contour | Firmness, texture, crepey skin |
| Similar to | Shurink Universe, Ultherapy Prime | Thermage FLX, Volnewmer |
| Published Gangnam prices from | ₩250,000 (≈ $190) | ₩700,000 (≈ $520) |
Prices vary by clinic, shots and areas, and change over time. Many clinics combine the two for a layered approach, similar to pairing other HIFU and RF devices.
Why Cooling Matters
Heat is what makes lifting devices work, but it is also what makes them uncomfortable. When the skin surface becomes too hot, doctors often have to reduce energy, which can limit results, and the risk of surface burns rises. Built-in cooling aims to keep the surface protected while allowing heat to reach the target layer. In practice, this can mean a more tolerable session, less need for strong numbing and a lower risk of surface irritation, though no device removes risk entirely.
Who These Treatments Suit
- People with mild to moderate sagging or loss of firmness
- Those who are sensitive to pain with other lifting devices
- People wanting jawline definition or a V-line effect (Cool Soniq)
- Those with crepey skin or fine texture concerns (Coolfase)
- People who want to return to normal activities straight away
They are less suitable for heavy sagging or significant volume loss, where surgery or fillers may give better results.
Results and How Long They Last
With Cool Soniq, gradual improvement usually appears over two to three months, and clinics often suggest repeating every three to six months. With Coolfase, firmness tends to build over one to three months, with many people repeating every six to twelve months. Results vary from person to person.
Recovery and Side Effects
Most people return to normal activities right away. Possible effects include:
- Mild redness for a few hours
- Swelling or tenderness for a few days, especially along the jaw after HIFU
- Rarely, bruising, temporary numbness, blisters or small burns
For about a week after Cool Soniq, clinics commonly advise avoiding alcohol, smoking, saunas, hot baths and intense exercise. Light makeup is usually fine the same day.
Who should avoid them
These treatments may not be suitable during pregnancy, with open wounds or active infection in the area, over certain implants, or, for Coolfase, with pacemakers or implanted electronic devices. Tell the doctor about recent fillers or threads. A licensed physician should assess you first.
How to Choose
- Choose Cool Soniq if your main concern is lift and contour.
- Choose Coolfase if your main concern is firmness and skin texture.
- Consider combining both for a layered result if your budget allows.
- Ask about shot count and areas included in the price.
- Confirm genuine devices and tips are used.
Tips for Visitors to Korea
- Both fit easily into a short trip; you can usually fly the next day.
- Bring sunscreen and keep skin moisturised afterwards.
- Take before photos and compare after two to three months.
- Keep records of device names, shot counts and areas.
Frequently Asked Questions
Are Cool Soniq and Coolfase less painful?
The cooling systems are designed to reduce discomfort, and many people find them more comfortable than some other devices. Sensitivity still varies.
Is Coolfase the same as Thermage?
Both are monopolar RF tightening devices, but they are made by different companies and use different tips and cooling systems.
Can I combine Cool Soniq with Coolfase?
Yes. Like other HIFU and RF pairings, combining them can address both deeper lift and skin firmness. The doctor will plan the order and energy.
How long does a session take?
Cool Soniq sessions often take 10 to 20 minutes per area, while Coolfase sessions vary with shot count. A combined session may take up to an hour.
Is Cool Soniq approved in Korea?
Cool Soniq has been approved by Korea's Ministry of Food and Drug Safety. As with any device, ask the clinic to confirm that the equipment and tips are genuine.
This article is for general information only and does not replace a consultation with a licensed physician. Results vary from person to person.


























