Hello. I'm Dr. Jung Huh, Chief Director of Ruby Dermatology Clinic, where we focus on restoring your skin's natural, healthy elasticity and structural integrity.

"My whole face is sagging and I'm worried about my deep cheeks and double chin. People around me tell me to get Ulthera, while an acquaintance insists on Thermage. So which lifting treatment is actually right for me?"

This is one of the questions I'm asked most often by patients considering anti-aging treatments.

Often called the two giants of anti-aging lifting, Ulthera and Thermage use completely different energy sources and target different layers. Only by accurately assessing your facial fat volume, skin thickness and direction of sagging can you achieve satisfying results without side effects.

💡 [3-Line Key Summary]

Ulthera (HIFU): Using high-intensity focused ultrasound, it excels at lifting sagging contours by tightening the deepest SMAS (fascia) layer and subcutaneous fat layer of the skin.

Thermage (Monopolar RF): Delivering monopolar radiofrequency energy throughout the entire dermis to regenerate collagen, it specializes in tightening skin density.

How to choose: Ulthera is the answer if you have fuller cheeks and a collapsing jawline; Thermage is the answer if you have little facial fat and reduced skin elasticity with fine lines. Combining the two, the 'Ul-Thermage' combination, is the most ideal.

A. Ulthera vs. Thermage: Fundamental Differences in Energy Source and Anatomical Target

Both are leading high-end lifting devices, but the depth the energy reaches and its purpose are clearly distinct.

Ulthera (HIFU / High-Intensity Focused Ultrasound):

Like focusing light through a magnifying glass to burn paper, ultrasound energy creates point-shaped thermal coagulation zones at specific depths in the skin (1.5 mm, 3.0 mm, 4.5 mm).

In particular, it delivers energy all the way to the deepest SMAS (fascia) layer, tightening and pulling up loosened tissue, making it ideal for 'correcting sagging contours.'

Thermage FLX (Monopolar RF):

Radiofrequency energy in the form of electric current is delivered with volume from the skin surface down to the lower dermis.

Without destroying the fat layer, it immediately contracts collagen throughout the dermis while also stimulating long-term new collagen synthesis, making it excellent for 'tightening & fine-line improvement' that makes skin firm and thicker.

B. Is It Right for Me? A Recommendation Guide by Face Type

1) Face types better suited to Ulthera

You have excess fat that has clumped and sagged downward in areas such as the double chin, deep cheeks and marionette lines

You have a solid facial bone structure and fairly thick skin

You want to sharpen a sagging jawline into a V-line

2) Face types better suited to Thermage

You have little cheek or sub-cheekbone fat, and are concerned about cheek hollowing from Ulthera

You have thin skin with fine lines spreading like a net

You are concerned about enlarged pores and overall loss of skin elasticity (fine lines caused by reduced elasticity)

C. Ulthera vs. Thermage at a Glance

D. Duration and Recommended Treatment Interval

Ulthera: Collagen remodels over 1–3 months after the procedure, and the effect lasts about 1 to 1.5 years.

Thermage FLX: Collagen production continues for 2–4 months after the procedure, and managing it on a 1-year cycle is ideal for maintaining skin elasticity.

E. 🔥 The Ultimate in Anti-Aging: The 'Ul-Thermage' Synergy Combination

Ulthera + Thermage Combined (Ul-Thermage):

Use Ulthera, with its strong contour-shaping power, to lift the deep fascia of the deep cheeks and double chin, and Thermage, which firmly fills out skin texture, to build overall dermal density. This creates the most complete anti-aging synergy, solving sagging and loss of elasticity at the same time.

F. Dr. Huh's Practical Know-How & Clinical Insights

Even the best lifting device leads to side effects if the patient's anatomy is ignored.

Before treatment, I use precise ultrasound imaging to carefully map each patient's fat thickness and fascia position by area. In areas with little fat, I reduce the number of Ulthera shots or adjust the depth, and in dermal layers with reduced elasticity I concentrate Thermage, applying a 'customized dual-layering design.' When energy is optimized for each patient's unique facial shape, you can achieve a naturally youthful face that doesn't look artificial.

📌 [Wrap-Up] Pre- and Post-Treatment Precautions

Moisturizing and soothing care: Skin that has received thermal energy may become temporarily dry after the procedure, so apply moisturizing and regenerating creams generously.

Sun protection: UV rays interfere with collagen regeneration, so be sure to apply sunscreen thoroughly whenever you go out.

Avoid saunas and strenuous exercise: For 3–5 days after the procedure, avoid saunas, jjimjilbang (Korean bathhouses) and strenuous exercise, which expose skin to excessive heat.

Author Bio

Dr. Jung HUH, Chief Director

Ruby Dermatology Clinic

A graduate of Korea University College of Medicine, Dr. Huh served as an emergency medical training instructor for special forces, a researcher in the Department of Plastic Surgery at Korea University Hospital, and director of Ruby Plastic Surgery. He is now Chief Director of Ruby Dermatology Clinic, devoted to restoring each patient's natural skin health and value.

Korea University, College of Medicine (M.D.)

Researcher, Department of Plastic Surgery, Korea University Medical Center

Member of Korean Society of Filler

Member of Korean Society of Laser, Dermatology and Hair

Member of Korean Society of Obesity and Aesthetic Medicine

Former Doctor, RUBY Plastic Surgery, Muse Clinic, U&I Clinic