“Is HIFU painful? Is it really worth spending tens of thousands of yuan on it?”
HIFU (also known as ultrasonic knife or ultrasound therapy) is considered one of the most popular “anti-aging trio” treatments in South Korea’s medical aesthetics industry (the other two being Thermage and Phoenix radiofrequency). I first tried HIFU in Taiwan, where it cost 38,000 New Taiwan dollars. The results were there—but the pain was so intense that I cried, and my face swelled up like I had been stung by bees the next day. Later, I went to South Korea and underwent a 600-shot treatment at a price half that of Taiwan’s, and the pain was significantly less. This article outlines the technical principles of HIFU, its prices in South Korea, the suitable candidates for this treatment, and the associated risks, so you can avoid making any mistakes.
What is HIFU? An analysis of the South Korea approach
HIFU (High-Intensity Focused Ultrasound) utilizes high-intensity focused ultrasonic energy to heat the SMAS fascia layer in the deeper layers of the skin, stimulating the contraction and regeneration of Collagen and thereby achieving a tightening effect. Unlike Thermage, which uses radiofrequency, HIFU employs ultrasonic waves that can penetrate to greater depths (up to 4.5mm), making it more effective in improving the contours of the chin and reducing facial sagging.
Common HIFU devices and brands in South Korea:
🔹 Ulthera (US version of HIFU): A product developed by Merz in the United States and recognized as the global Gold Standard. It delivers highly precise energy delivery, but may cause relatively more discomfort.
🔹 Doublo Gold (Bipolar Ultrasound): Commonly used in South Korea. It causes less pain compared to the American version, and the results are also quite satisfactory.
🔹 Sofwave: An Israeli-made product designed for the middle dermis layer (1.5mm), ideal for reducing fine lines and improving skin texture.
🔹 HIFU: A domestically produced device from South Korea, it offers the lowest price, but its energy level and precision are inferior to those of the American version.
In South Korea, clinics usually allow customers to choose the number of hairs to be implanted. For example, 300 hairs for the face, 600 hairs for the entire face and neck, or 900 hairs for the entire face, neck, and jawline. The more hairs are used, the larger the coverage area and the higher the cost.
Differences in the practices of doctors in South Korea compared to Taiwan: First, regarding the method of anesthesia, mainstream clinics in South Korea apply an anesthetic first for 40 minutes before administering painkillers, resulting in much better pain control than in Taiwan. Second, in terms of dosage, South Korean doctors tend to use “smaller doses with higher intensity” rather than “larger doses with lower intensity,” leading to more concentrated effects.
What are the results? Which specific issues have been effectively addressed?
The core effect of HIFU is to lift and tighten the skin, addressing the issues of sagging caused by the loss of Collagen and the force of gravity.
🎯 Vague jawline: After 2 to 3 months, the contours of the jawline will become more distinct, and the Double Chin will also decrease.
🎯 Nasolabial Fold Correction: It is somewhat effective for mild cases of Nasolabial Fold Correction, but its effectiveness is limited for more severe cases.
🎯 Sagging of the Apple Zone: It is possible to lift the position of the Apple Zone, but the extent of this effect varies from person to person.
🎯 Overall firming of the face: The skin will feel tighter, no longer having that “flabby” texture.
🎯 Neck wrinkles: When applied around the neck, it can help reduce the appearance of wrinkles in this area.
Effect timeline: There may be slight swelling on the day of the treatment, and it is usually after 1–2 weeks that one begins to notice the skin becoming tighter. The optimal results are achieved after 2–3 months, as Collagen requires time to regenerate. The effects can last for 1–2 years.
⚠️ To be objective, the effects of HIFU vary from person to person. Those with less facial fat and thinner skin tend to see more noticeable results. However, if someone has a lot of facial fat and very loose skin, HIFU alone may not be sufficient; in such cases, procedures like thread lifting or facelift surgery may be necessary.
If you want to see actual cases, you can refer to the reviews of Dr. Lamine Kim Ji-eun’s Liquid Lifting treatment to learn about the results and experiences of other patients.
Who is this suitable for? Analysis of unsuitable groups
Ideal candidates:
✅ For people aged 30 to 50 who are starting to show signs of aging – the contours of the chin become blurred, and the Nasolabial Fold Correction becomes more pronounced.
✅ For those with little fat on their cheeks who want a “precise lifting” effect – ultrasound treatment works particularly well for those seeking to define their facial contours.
✅ Those who do not want to undergo surgery but desire more profound results than those achieved by Thermage
✅ For those considering a medical beauty package (ultrasonic therapy + Thermage + Botox) – it’s the perfect way to address multiple anti-aging needs in one go.
✅ For those who have a limited recovery period after surgery and need to return to work in just a few days – the recovery time for ultrasound treatments is very short.
Not suitable for:
❌ For those with severely sagging cheeks and excessively drooping skin, surgical facelifts are necessary; non-invasive treatments have limited effectiveness in such cases.
❌ For those with excessive fat on their cheeks and a round, plump face structure – ultrasound treatment can only lift the skin without reducing fat; in such cases, liposuction may be necessary first.
❌ Pregnant women or those with metal implants in the area near where the injection will be administered
❌ People with severe skin inflammation or infections
❌ For those who are extremely sensitive to pain and cannot even tolerate the use of anesthetics — HIFU does cause some discomfort.
What are the differences between South Korea and Taiwan? A comparison of technology and results.
HIFU can be performed in both South Korea and Taiwan, but there is a significant difference in the scale of the market and the level of experience in South Korea.
Equipment options: Almost all clinics in South Korea offer Ulthera (the US version of this technology), while in Taiwan, the number of clinics that use Ulthera is relatively small, and the prices charged in Taiwanese dollars are usually more than twice as high as those in South Korea. In addition, South Korea offers many equipment options that are not available in Taiwan, such as Doublo Gold and Sofwave.
Price: Taking the US version with 300 treatments as an example, the price in Taiwan is approximately NT$40,000 to $60,000, while in South Korea it ranges from KRW 9.8 million to 1.2 million (equivalent to approximately NT$19,000 to $28,500), which represents a difference of nearly half. In South Korea, a package offering 600 treatments for the entire face and neck costs roughly the same as the 300-treatment package in Taiwan.
Pain control: South Korea’s clinics perform better in pain control than those in Taiwan. While most clinics in Taiwan only apply local anesthetics, those in South Korea also use painkillers or laughing gas, which can reduce overall discomfort by 30-50%.
Doctors’ experience: Plastic surgeons in South Korea generally have more experience in performing HIFU than those in Taiwan. HIFU is a procedure where “30% depends on the equipment and 70% on the technique”; even with the same machine, different doctors may achieve significantly different results. South Korean doctors know exactly at what angle, at what depth, and with how much energy to apply in order to achieve the best lifting effects.
If you want to know the detailed prices of HIFU in South Korea, you can refer to the comparison of HIFU prices in South Korea and the United States, which includes an analysis of the market situation for the Ulthera 600-shot treatment in 2026.
What is the approximate price? A summary of the market situation in South Korea in 2026.
In South Korea, the price of HIFU is calculated based on the brand of the equipment and the number of treatments performed.
The American version of the Ulthera device: 300 treatments for the face cost between ¥800,000 and ¥1.2 million (approximately NT$19,000 to NT$28,500); 600 treatments for the entire face and neck range from ¥1.4 million to ¥2 million (about NT$33,000 to NT$47,500).
Doublo Gold: 300 hairs for the face at a price of ¥500,000 to ¥800,000 (approximately NT$12,000 to NT$19,000); 600 hairs for the entire face and neck at a price of ¥900,000 to ¥1,400,000 (approximately NT$21,000 to NT$33,000).
Sofwave: Full-face treatment ranging from ₩600,000 to ₩900,000 (approximately 14,000 to 21,000 Taiwanese dollars).
HIFU for the entire face: ₩300,000 – 600,000 (approximately NT$7,000 – 14,000) — This option offers the lowest price, but the results are also the most limited.
💡 Money-saving tips: Many clinics offer package deals combining “ultrasonic waves + Thermage” or “ultrasonic waves + Botox”, which are 20-30% cheaper than purchasing these treatments individually. During the peak seasons (summer from July to August, and the end of the year from December to January), special discounts may be available.
You can also check out the price details of Sofwave and the price list of ON Clinic to compare the differences in quotes from different clinics and avoid overpaying.
What should I pay attention to regarding the risks associated with the treatment and the recovery period?
HIFU is a medical beauty treatment that involves relatively high levels of discomfort, so it’s important to be mentally prepared for this.
Common side effects:
🔴 Pain during treatment – Even with the American version of this ultrasonic device, there is significant discomfort in areas near the bones (such as the Forehead and jawbone).
🔴 Slight swelling and redness occurred on the same day after the treatment.
🔴 Within 1 to 3 days after the treatment, you may experience numbness or stinging sensations.
🔴 In a few cases, mild bruising may occur after the treatment (which usually disappears within 1 week).
Severe risk (extremely rare):
⚠️ Nerve damage – If the intensity of the energy is too high or the treatment is applied in an area with a high concentration of nerves, it may cause temporary nerve numbness.
⚠️ Burns – Equipment malfunctions or improper operation can cause skin burns.
⚠️ Fat atrophy – Excessive treatments may cause subcutaneous fat to shrink, leading to facial sagging.
Postoperative care:
✦ After the treatment, avoid getting the area wet or applying makeup on the same day.
✦ Avoid saunas, hot springs, and sun exposure for one week.
✦ Increase your intake of water and Collagen (such as chicken feet, fish skin, and health supplements).
✦ Strengthen moisturization and sun protection – The skin is more fragile after the procedure.
✦ Do not undergo any other invasive facial treatments within one month.
In summary: Is this treatment really worth undergoing?
HIFU is one of the most cost-effective anti-aging treatments in South Korea’s medical aesthetics industry. If I had to choose just one anti-aging treatment, I would recommend HIFU – because it acts directly on the SMAS fascia layer, providing more noticeable lifting effects than Thermage, and its recovery period is also much shorter than that of surgical procedures.
South Korea’s HIFU offers clear advantages over Taiwan in terms of price, equipment options, physicians’ experience, and pain control. If your budget permits, it is recommended to opt for the premium Ulthera model, as it is more expensive but provides more stable results. If you are looking to save money, Doublo Gold is also a good choice.
Key points when choosing a clinic: Make sure it uses genuine equipment (you can identify this by the brand logo on the machines), that the doctor has at least 500 years of experience in performing such procedures, and that the clinic offers effective pain management measures, including a comprehensive anesthesia plan.
For more information on medical beauty appointments in South Korea and recommendations for clinics, please visit “About Us”.
How to make an appointment
In South Korea, there are only two official channels for booking medical beauty treatments. Any other channels carry the risk of encountering scams.
Route A: Direct connection via WeChat → Add s-sourire → One-on-one pre-operative assessment, immediate inquiry about the dean’s schedule, access to internal discounts, and Chinese-speaking translation services available.
Route B: BeautsGO – Let’s Enhance Each Other (mini-program) → Search for “BeautsGO” on WeChat → Enter the English name of the hospital to make a reservation directly → Transparent price comparisons, exclusive platform discounts, and a dedicated green channel for certified services. If you want to talk to someone with experience, please add me on WeChat: s-sourire. If you want to talk to someone with experience, please add me on WeChat: s-sourire. If you want to talk to someone with experience, please add me on WeChat: s-sourire.
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