Ultherapy PRIME vs Thermage FLX: Is It Better to Choose One Treatment or Combine Both?
Gangnam HERA Clinic
Ultherapy PRIME and Thermage FLX are often two of the most commonly considered options for those looking to improve facial firmness without surgery.
Both are non-surgical skin tightening technologies, but they work in different ways and target different tissue layers, which is why choosing between them—or deciding whether to combine both—depends on the specific concerns being treated.But if both treatments are designed to improve firmness, why do some people choose to combine them?
And if your concerns include both a less-defined jawline and skin that is starting to lose firmness, do you really need to invest in both treatments?
The answer depends on which tissue layers are causing the concern and what each treatment is being used to target.Today, we’ll take a closer look at how choosing one treatment compares with combining Ultherapy PRIME and Thermage FLX, who may be better suited to a combination approach, and what you should know before traveling to Korea for treatment.
Ultherapy PRIME vs Thermage FLX

Although Ultherapy PRIME and Thermage FLX are both non-surgical skin tightening treatments, they work in different ways and each has its own specific strengths.
To understand which option may be more suitable for your concerns, it helps to first look at how each technology works, which tissue layers it targets, and what role it plays in facial lifting and skin tightening.1. Ultherapy PRIME — Focused Ultrasound Energy Delivered to Precise Tissue Depths
Ultherapy PRIME uses focused ultrasound energy to create small, controlled thermal points beneath the skin. Its transducers can deliver energy at multiple depths, including approximately 1.5 mm, 3.0 mm, and 4.5 mm.
Key Feature:
It includes real-time ultrasound visualization, allowing the doctor to see the tissue layers and confirm the treatment position before delivering energy. This makes it possible to plan the treatment according to the specific depth and area that needs lifting or tightening.
Best For:
Those looking to improve skin laxity and deeper structural support without surgery, particularly in areas such as the jawline, under the chin, and brow area.2. Thermage FLX — Restoring Skin Firmness with Radiofrequency Energy
Thermage FLX uses monopolar radiofrequency (RF) energy to deliver controlled heat into the skin. This heat causes existing collagen fibers to contract while also supporting the process of new collagen production and remodeling, helping the skin gradually look firmer, smoother, and more resilient.
Key Feature:
Thermage FLX features AccuREP™ technology, which automatically measures and adjusts energy delivery with each pulse. It also includes cooling and vibration systems designed to improve comfort during treatment.
Best For:
Those experiencing reduced skin firmness, lower elasticity, less bounce, or early signs of skin laxity.
Is One Treatment Enough, or Is It Better to Combine Ultherapy PRIME and Thermage FLX?

This is probably the question most people want answered. In reality, combining Ultherapy PRIME and Thermage FLX does not automatically mean better results for everyone.
The decision should be based on more than budget alone. What matters most is the degree of skin laxity, the areas you want to focus on, and the type of result you are hoping to achieve.
A simple way to think about it is:
- Ultherapy PRIME Alone
This may be more suitable for those concerned about tissue laxity that is beginning to change the facial contour, such as lower cheek descent, a less-defined jawline, loose skin under the chin, or early brow drooping.
Ultherapy PRIME uses focused ultrasound energy delivered to specific tissue depths to support lifting and tightening in the areas that need targeted structural support.
- Thermage FLX Alone
This may be more suitable for those concerned about loss of skin firmness and elasticity, even before noticeable sagging develops. Common signs may include cheeks that feel softer or less firm than before, fine lines, or a gradual loss of smoothness and resilience.
Thermage FLX uses radiofrequency energy to deliver controlled heat into the tissue, helping stimulate collagen remodeling so the skin can gradually appear firmer, smoother, and more resilient over time.
- Ultherapy PRIME + Thermage FLX Combination Treatment
This approach may be more suitable for those dealing with both tissue laxity and reduced skin firmness. For example, someone may want to improve a jawline that is beginning to sag while also addressing cheek skin that feels less firm or resilient.
By combining focused ultrasound energy from Ultherapy PRIME with radiofrequency energy from Thermage FLX, the doctor can create a treatment plan that targets different concerns and tissue layers within the same overall facial rejuvenation strategy.The main advantage of combining Ultherapy PRIME and Thermage FLX is that the two technologies can address different aspects of facial aging in a more comprehensive way—from a less-defined jawline and deeper tissue laxity to skin that is beginning to lose firmness and elasticity.
However, combination treatment is not necessary for everyone. The doctor should first assess your skin condition, degree of laxity, facial structure, and treatment goals before deciding how each type of energy should be used.
This allows the treatment plan to be adjusted for the most appropriate balance of effectiveness, precision, and safety for your individual needs.
Ultherapy PRIME + Thermage FLX at Gangnam HERA Clinic

For those looking for a more comprehensive lifting and skin-tightening plan, Gangnam HERA Clinic offers a combination program featuring two of its key technologies in a single package: Ultherapy PRIME 600 shots + Thermage FLX 600 shots.
The program is designed for those who want to address multiple aspects of facial laxity and skin firmness at the same time, using two technologies with different mechanisms of action.
Some of the key highlights include:1. Two Technologies in One Treatment Program
This program combines Ultherapy PRIME 600 shots and Thermage FLX 600 shots in a single treatment plan, allowing both facial contour laxity and reduced skin firmness to be addressed together in one session.2. Seamless, Customized Facial Treatment Planning
The doctor evaluates the overall facial structure and skin layers before designing how the shots from both devices should be distributed to complement each other.
Areas that need deeper lifting support can be treated with greater focus, while areas that need improved surface-level firmness and skin tightening can be addressed differently. This helps the two technologies work together more precisely without delivering unnecessary overlapping energy.3. Easy to Fit into Your Travel Schedule
This program is especially convenient for those with limited time in Korea. The doctor can help plan the treatment sequence, appropriate intervals, and post-treatment care in a structured way from the initial consultation.
This makes it easier to organize your travel itinerary and daily schedule around the treatment without unnecessary disruption.For those who want to refine the results even further, there are also options to combine energy-based lifting treatments with thread lifting or other aesthetic procedures to create a facial contouring plan that better matches your individual goals.
If you are already considering Ultherapy PRIME together with Thermage FLX, this combination program can be a convenient option for saving time while keeping the overall treatment process well coordinated, structured, and easier to fit into your schedule.
The key is to have the treatment plan customized by the doctor so that each technology is used where it is most appropriate, helping support a result that feels both balanced and personalized.
How to Prepare Before and After Traveling to Korea for a Lifting Treatment
In addition to choosing the right treatment program, preparing your skin and planning your travel schedule properly are just as important.
This is especially true if you are planning to combine Ultherapy PRIME with Thermage FLX. Here are some key things to prepare before and after treatment:
Before Treatment
1. Pause Skincare Products That May Irritate the Skin
If you use exfoliating acids such as AHA/BHA, retinol, or facial scrubs, check with the clinic in advance to find out how many days you should stop using them before treatment.
This is especially important for those with dry, red, or easily irritated skin.2. Share Your Previous Treatment and Medical History
Let the doctor know about any previous aesthetic treatments, including dermal fillers, Botox, thread lifts, or energy-based lifting procedures, along with the treatment areas and when they were performed.
You should also share any relevant medical conditions, medications, and implanted medical devices, so the doctor can assess potential precautions and plan the treatment appropriately.3. Allow Time for Consultation and Possible Post-Treatment Reactions
If you have a photoshoot, important event, or several days of outdoor activities planned, let the clinic know your schedule before booking the treatment.
This allows enough time for any temporary redness or swelling that may occur after the procedure and helps the clinic plan your treatment around your travel schedule more appropriately.
After Treatment
1. Return to Daily Activities Based on How Your Skin Feels
In general, Ultherapy PRIME and Thermage FLX do not require the type of downtime associated with surgery. However, some people may experience temporary redness, mild swelling, tenderness, or increased sensitivity to touch after treatment.
If your skin feels normal and there are no additional restrictions from the clinic, you can usually return to your regular daily activities.2. Focus on Hydration and Sun Protection
Use a gentle moisturizer and apply sunscreen regularly to help support the skin and minimize irritation during the recovery period.
There is no need to add multiple new skincare products in an attempt to speed up the results. Keeping your routine simple, gentle, and consistent is usually the better approach after treatment.3. Avoid Excessive Heat During the Early Recovery Period
If your skin is still red or sensitive to touch, it is best to avoid saunas, very hot baths, or activities that cause the face to become excessively warm.
The length of time you should avoid these activities may vary, so follow the doctor’s specific aftercare recommendations.4. Watch for Unusual Reactions
Although serious side effects are uncommon, contact the clinic promptly if you experience unusually severe pain, a rash, blistering, or persistent numbness in the treated area.
The medical team can assess your symptoms and provide the appropriate guidance or follow-up care.If you are planning to get Ultherapy PRIME or Thermage FLX at Gangnam HERA Clinic, the doctor will carefully assess whether each treatment is suitable for your skin and whether combining both technologies would be appropriate.
Your previous aesthetic treatment history will also be reviewed so the doctor can plan the most suitable treatment sequence and create an approach tailored to your skin condition, facial concerns, and desired results.
Plan Your Facial Lifting Treatment in Korea with STM MATCH

If you are unsure whether Ultherapy PRIME or Thermage FLX is more suitable for you—or whether combining both treatments would be the better option—you can start by sharing your information with STM Style.
To begin, simply prepare some basic details such as the areas of your face you would like to improve, the features you would like to preserve, your previous treatment history, and how many days you plan to stay in Korea.Once we receive your information, STM Style can help match your case with a Korean doctor who specializes in the specific technique or treatment area you are interested in, using our network of experienced medical professionals.
From there, the Korean doctor will assess your facial structure, skin condition, and main concerns to determine which lifting treatment is most appropriate, which areas should be treated, and how broad the treatment plan should be.
The goal is to create a personalized approach that supports natural-looking, well-balanced results while prioritizing safety and suitability for your individual needs.
FAQ: Frequently Asked Questions About Ultherapy PRIME and Thermage FLX
Q. If I’ve Already Had Ultherapy, Can I Still Get Thermage Later?
Yes, you can consult a doctor to see whether adding Thermage after Ultherapy would be appropriate.
One important factor is how much time has passed since your Ultherapy treatment, since Ultherapy results can continue to develop gradually over several months.
If your skin is still changing from the previous treatment, adding Thermage too soon may not be necessary. It is better to first evaluate the results of the earlier treatment and your current skin condition before deciding whether an additional procedure is needed.Q. Why Is Combining Ultherapy PRIME with Thermage FLX in Korea Worth Considering?
Beyond pricing and the value of combination programs, one of the key advantages is the facial contouring and treatment design approach used by Korean doctors.
The doctor considers both tissue laxity and overall skin firmness when deciding which areas to treat and how broad the treatment should be. This allows the plan to be tailored to your existing facial structure and the changes you want to achieve.
The goal is to create results that look refined, naturally lifted, and well balanced, while addressing the actual skin concerns identified during the assessment.Q. How Long Does It Take to Start Seeing Results After Combining Ultherapy PRIME and Thermage FLX?
Some people may begin to notice early improvements in skin firmness soon after treatment. However, the full effects of Ultherapy PRIME and Thermage FLX do not appear immediately, because the body needs time to produce and remodel collagen.
In general, the changes become more noticeable over approximately 2–3 months after treatment and may continue to develop over the following months.
Taking comparison photos at regular intervals can make it easier to track changes in jawline definition and overall skin firmness. The timing and degree of improvement can vary from person to person.
If you are considering Ultherapy PRIME or Thermage FLX in Korea, you can send STM Style your photos, main areas of concern, and previous lifting or skin-tightening treatment history.
STM Style can help organize this information, match you with a Korean doctor whose expertise fits your needs, and coordinate a preliminary assessment before you travel to Korea.

