When asked experienced beauty professionals in South Korea how many treatments are needed for an HIFU session, nine out of ten can’t give a definite answer—because there’s simply no standard response to this question. Many people search online for terms like “Ulthrea” or “Ultherapy Prime,” only to find conflicting information: some say 300 treatments are sufficient, while others claim 600 are required for effective results. This leaves things even more confusing. In this article, we’ll break down the myth surrounding the number of HIFU treatments, so you stop focusing solely on numbers and learn to ask the right questions instead. Direct answer: The number of pulses from an HIFU device isn’t the higher, the better. It should be determined by the doctor based on an individual’s face shape and degree of sagging. Blindly pursuing a high pulse count may actually affect both the effectiveness and safety of the treatment.
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Table of Contents
More HIFU sessions mean better results? Debunking 3 common myths
Direct answer: The number of pulses fired isn’t the only factor that determines the outcome. Coverage area, energy depth, and the doctor’s technique are equally crucial. Blindly pursuing a high pulse count doesn’t necessarily mean better results.
The principle behind the Ulthrea Prime version is to use focused HIFU energy to create thermal coagulation points at different depths in the skin (typically 1.5mm, 3.0mm, and 4.5mm), thereby stimulating the production of new Collagen and achieving a lifting effect. The number of treatments actually refers to “the count of thermal coagulation points.” Theoretically, the larger the treatment area and the more depth layers involved, the more treatments will be needed. However, this is determined by your face shape, size, and degree of sagging—not by the idea that “the more treatments, the younger you’ll look.”
Many clients have previously reported being persuaded by certain clinics to “add more sessions,” when in fact their original treatment plan already covered all the areas they needed. The number of sessions should be determined by a doctor based on your facial structure and degree of sagging—it’s not a figure that can be decided solely through online comparisons without a clinical assessment.
What factors influence the number of sessions needed?
- Face shape area:For those with a larger face shape or who want to add a neck treatment, more hairs are naturally needed for coverage.
- Degree of relaxation:Mild sagging may only require targeted reinforcement, while moderate to severe sagging demands a more comprehensive distribution of lifts.
- Depth of treatment:Some treatments offer a single depth level, while others combine multiple depth levels, resulting in different calculation methods for the number of sessions needed
- Types of instrument probes:Different probes are suitable for various areas and depths, which can affect the actual number of shots required.
Reference: Number of lesions in common sites
| Area | Common Frequency Ranges | Notes |
|---|---|---|
| Localized enhancement (Nasolabial Fold Correction, sagging around the mouth) | About 100–200 shots | Adjust based on the degree of relaxation |
| Full-face foundational lifting | About 300–450 shots | Common entry-level options |
| Full Face + Neck | Approximately 450–700 shots | Lines on the neck and Double Chin often appear together |
The figures above are merely common ranges in the market and do not apply to everyone. The exact number of injections required must be determined through a medical consultation and facial assessment by a doctor.
How to avoid being overcharged by clinics?
During the in-person consultation, you can proactively ask the doctor to explain “how the number of treatments in this plan is distributed across different areas” and “whether it covers all the areas you want to improve,” rather than just focusing on the total number of treatments. Before making payment, it’s advisable to double-check the details of the plan, including the brand of the equipment, types of probes, the areas treated, and the total cost. If you’re pressured on the spot to add more services, ask the doctor to explain why, without feeling obligated to agree right away.
Frequently Asked Questions
Q1: Does a lower number of shots mean the device isn’t authentic?
Not necessarily. The number of shots administered mainly reflects the size of the treatment area and has no direct relation to whether the device is genuine. To determine if it’s authentic, you should check the brand and model of the device directly, rather than judging based solely on the number of shots.
Q2: If one session isn’t enough to achieve the desired result, can I do additional sessions later?
Sure, many people opt to proceed in stages—starting with a basic treatment plan, observing the results before deciding whether to enhance it further. It’s recommended to discuss the specific arrangement with your doctor; you don’t necessarily have to go through everything at once.
Q3: Which depth level is the most important?
The effects vary depending on the depth of treatment: shallower levels improve skin firmness, while deeper levels (such as 4.5mm) can reach the SMAS fascia layer, delivering a more noticeable lifting effect for facial contours. Whether multiple depth levels need to be used depends on the individual’s degree of sagging, and should be determined by a doctor through evaluation.
Just a reminder to everyone: the coverage range of probes from different brands varies, so you can’t just compare the numbers.
It’s recommended to ask the doctor to demonstrate the actual size of the probe during the in-person consultation, so you can know the actual coverage area.
After the treatment, the skin may turn slightly red, but this usually fades on its own within a few hours.
If you have any doubts about the results of the treatment, feel free to schedule another consultation to discuss options with the director.
Additionally, you should avoid intense exercise right after the treatment and wait until your skin has stabilized before resuming your regular workouts.
If you have any doubts about the results of the treatment, feel free to schedule another consultation to discuss options with the director.
Before you go, make sure to ask about the probe model and maintenance status to confirm the device is in good condition.
In short, the growth rate is just a reference figure and shouldn’t be the only standard for comparison.
The most important thing is to find an experienced doctor who can tailor the treatment plan to individual circumstances.
If you have any questions, feel free to reach out to our team at any time to learn more.
I hope this article can help you who are planning to undergo the treatment.
Wish everyone can find a plan that suits them best.
Book a consultation at DAN-A in Myeongdong now!
If you’d like to find out more about whether the Ulthrea (Ultherapy Prime) is right for you, or if you’d prefer to schedule a personal consultation with the clinic director, feel free to get in touch with DAN-A in Myeongdong using the details below:
WhatsApp：
Number search: +821072188830
WhatsApp link:https://wa.me/821072188830
Instagram： Private message @dana_clinickrProvide the appointment date, number of people, and the issues you’d like to address, and the clinic will help arrange a time slot for Chinese-speaking service.
Clinic Name: DAN-A Clinic / 단아의원 / Myeongdong Dermatology
Subway: Exit 6 of Seoul Metro Line 2, “Euljiro Entrance Station,” about 1 to 2 minutes on foot
Business hours: According to the official booking page and latest announcements on Instagram, clinics in South Korea may be closed due to national holidays or schedule changes by the clinic owners. It’s recommended to check in advance before heading there.
The content in this article is for reference only. Actual treatment results may vary depending on individual constitution and skin condition. For a detailed assessment, please refer to the evaluation by the clinic director in person.