Ultherapy focuses ultrasound into points in the dermis and SMAS, a deeper tissue layer, to stimulate collagen regeneration.
Thermage uses thermal energy to tighten a broad area of the dermis. Their different layers and methods mean their effects do not simply duplicate one another.
When combining them, sequence and spacing influence results, which vary between individuals.
➊How does Ultherapy work?
Ultherapy concentrates ultrasound at points in the shallower dermis and deeper SMAS—the layer targeted by surgical lifting—to create small thermal responses.
These responses signal new collagen formation and reorganization, gradually improving firmness.
Ultherapy (HIFU, high-intensity focused ultrasound) delivers energy at chosen depths while leaving the skin surface intact.
Real-time imaging of skin layers helps identify areas to avoid during treatment and supports safer delivery.
The forehead, eye area, cheeks and jawline differ in skin, fat and fascial thickness, so depth and energy are planned separately by area.
This precise depth adjustment is central to Ultherapy.
➋What does it mean that Ultherapy and Thermage treat different layers?
Thermage uses radiofrequency (RF) to broadly heat the dermis across an area.
Ultherapy focuses ultrasound at points, selecting depths from the dermis to SMAS.
Both aim for lifting, but energy delivery and the range of layers addressed differ.
Direct comparison studies have reported no statistically clear differences in efficacy, satisfaction or adverse events for the face and neck.
| Category | Ultherapy | Thermage |
|---|---|---|
| Energy delivery | Focused points | Broad area delivery |
| Main layers treated | Dermis to SMAS, including deeper layers | The dermis broadly |
| Pain during treatment | Reported as relatively greater | Reported as relatively less |
| Recognized strengths | Depth customization, real-time visualization | Surface firmness and tightening |
“Ultrasound reaches deeply in points, while RF tightens broadly across an area; they tend to share different roles rather than duplicate each other.”
➌Which should come first? Criteria based on facial condition
If sagging extends to SMAS and the contour itself feels less supported, a deeper-reaching method such as Ultherapy is often a better fit.
If surface elasticity, fine lines or rough texture matter more than sagging, Thermage's broad-area treatment may be efficient.
I describe them as tools with different roles, not competitors.
They are often planned together to cover layers from the dermis to fascia.
- ✓A (Ultherapy): focus on SMAS and deep sagging
- ✓B (Thermage): focus on surface firmness and texture
- ✓Both: a combination can be planned around the objective
➍The time collagen needs: when changes become noticeable
Ultherapy's effects do not become fully apparent immediately after treatment.
Thermally stimulated tissue undergoes denaturation, inflammation, proliferation and remodeling as new collagen forms; effects are generally understood to reach their maximum over several months.
Combining Thermage during this period can add a relatively earlier sense of dermal firmness, with the two effect curves overlapping at different times to support noticeable improvement.
Recovery and regeneration vary between individuals.
| Timing | Changes in the body |
|---|---|
| Immediately to several days | Temporary swelling, slight warmth |
| Within several weeks | Early tissue response; major change may be difficult to notice |
| Over several months | Collagen regeneration progresses, firmness becomes gradually more noticeable |
➎Reactions to know about during recovery
Ultherapy may cause temporary redness, swelling, bruising or treatment-site pain for several days, usually settling naturally.
Rare nerve-related reactions or pigmentation have been reported, making prior assessment of skin condition and medical history important.
Treatment should be avoided during pregnancy, with coagulation disorders, or when infection or inflammation is present in the treatment area.
Always disclose other lifting, filler or thread procedures within the previous 6 months.
Thermage can also cause temporary swelling and pain, so combining them requires spacing that accounts for each recovery period.
➏Who I recommend it for, and who needs other guidance
I recommend Ultherapy for sagging contours and loss of support extending to SMAS, or for those wanting a gradual nonsurgical lifting approach.
If texture and surface firmness also matter, adding Thermage can form a plan addressing multiple layers.
For marked sagging, substantial subcutaneous fat or a wish for dramatic rapid change, I first explain that nonsurgical lifting may fall short.
Adding procedures may look profitable in the short term, but a large expectation–result gap reduces satisfaction, so I discuss it frankly.
We assess skin thickness, sagging and lifestyle to decide whether and how to combine treatments (individual results vary).
“It is worth considering for gradual nonsurgical management of sagging, but if you expect fast, dramatic change, I also explain other options.”
QFrequently asked questions
Ultherapy focuses ultrasound at points through the dermis to SMAS; Thermage uses RF heat to tighten the dermis over a broad area.
Their different layers and methods make them closer to complementary than duplicate treatments.
They are often sequenced and spaced apart rather than performed on the same day.
It is safer to have intervals determined after assessing skin condition at consultation.
In general, treating deeper layers first and then refining surface firmness is a natural sequence.
However, it can vary with individual skin condition.
Collagen rearrangement takes time, so changes emerge gradually and generally accumulate over several months.
Individual results vary.
After checking skin thickness, sagging and treatment history, we plan the order and intervals.
Specific methods suited to your condition are explained after consultation (results vary).
References
- Comparing Monopolar Radiofrequency Versus Microfocused Ultrasound, Randomized Split-Face Trial (relevant academic journal, 2018)
- Microfocused Ultrasound in Regenerative Aesthetics: A Narrative Review (relevant academic journal, 2024)
Ultherapy does not fill or mechanically pull the skin; it sends signals that help the skin regain firmness itself.
Ultherapy is nonsurgical lifting that stimulates dermis and SMAS with ultrasound to induce collagen regeneration. Because its layers and methods differ from Thermage, a combined plan can complement the limitations of each.
I recommend an examination at LUNN Clinic to identify the combination and order suited to your skin.
Dr. Park Hyungkwon, Director and Dermatologist at LUNN Clinic
Under Article 56 of the Medical Service Act, we disclose temporary redness, swelling, bruising and pain, and rare nerve-related reactions or pigmentation.
Treatment and procedure results may vary depending on the individual’s condition.
This column is intended to provide medical information.
