Quick answer: Thermage uses radiofrequency to heat the skin evenly and tighten it over a wide area. Sofwave uses parallel ultrasound beams at about 1.5 mm to tighten the middle skin layer and smooth fine lines. Thermage is often better for overall skin firmness and the eyes; Sofwave is often better for fine lines with little discomfort.
Key takeaways
- Thermage is monopolar radiofrequency (RF); Sofwave is ultrasound.
- Both work mainly in the skin (dermis), not the deep SMAS layer.
- Thermage heats a broad volume of tissue; Sofwave heats a thin band at one depth.
- Both build collagen gradually over about three months.
- Both have very little downtime and suit visitors on short trips.
What is Thermage?
Thermage FLX, made by Solta Medical, uses monopolar radiofrequency to heat the deep skin and the tissue just below it. The heat tightens existing collagen and stimulates new collagen, so the skin looks firmer and smoother over the following months. Thermage can treat the face, eyelids, neck and body, and has FDA clearance for wrinkles and fine lines, including around the eyes. Results often last about a year.
What is Sofwave?
Sofwave, made by Sofwave Medical, uses seven parallel ultrasound beams (SUPERB technology) to heat a thin layer of tissue at about 1.5 mm in the middle of the skin. A built-in cooling system protects the surface. Sofwave has FDA clearance to improve facial fine lines and wrinkles and to lift the eyebrow, the skin under the chin and the neck. Many people find it comfortable, and sessions are relatively quick.
How do Thermage and Sofwave compare?
- Energy: Thermage radiofrequency; Sofwave ultrasound.
- Depth: Thermage heats a broad volume of the dermis and below; Sofwave targets about 1.5 mm.
- Best for: Thermage for overall skin firmness, crepey skin and eyelids; Sofwave for fine lines and mild laxity.
- Comfort: Thermage feels like short hot pulses; Sofwave feels warm with cooling.
- Treatment time: both usually 30 to 60 minutes for the face.
- How long results last: both often around a year.
Which is better for loose skin?
If your skin feels thin, loose or crepey across the cheeks, jawline or neck, Thermage is often the stronger choice. Radiofrequency heats a larger volume of tissue, which helps the whole skin surface feel firmer. It is also a popular option for hooded or crepey eyelids, thanks to its dedicated eye tip.
Which is better for fine lines?
If your main concern is fine lines around the eyes, mouth or forehead, Sofwave is a good option. It focuses energy in the middle of the skin, where fine lines form, and its cooling keeps the treatment comfortable. It suits people in their 30s and 40s who want smoother skin without much downtime.
Can you combine Thermage and Sofwave?
Yes, but most people do not need both at the same time. Doctors more often combine one of them with Ultherapy, which lifts the deeper SMAS layer. A common plan is Ultherapy for lifting plus Thermage or Sofwave for skin tightening and texture. Your doctor will choose based on your skin and goals.
What is the downtime?
Downtime is very low for both. After Thermage, the skin may look pink and slightly swollen for a few hours to a day. After Sofwave, redness usually fades within a few hours. Most visitors go sightseeing the same day and can wear makeup the next day.
Is it safe?
Both devices are FDA cleared and widely used. Rare risks include small burns, blisters or temporary tenderness. Tell your doctor about metal implants, pacemakers or recent fillers, which may matter for radiofrequency. Choose a clinic that uses genuine tips and cartridges.
How to choose between them
Korea treated about 2.01 million foreign patients in 2025, and around 63% came for dermatology, according to the Ministry of Health and Welfare. Skin tightening is one of the most requested treatments. As a simple guide, choose Thermage for overall firmness and eyelids, and Sofwave for fine lines with maximum comfort. If you also have sagging, ask about adding Ultherapy.
Frequently asked questions
Is Sofwave a type of radiofrequency?
No. Sofwave uses ultrasound, while Thermage uses radiofrequency.
Which one hurts less?
Many people find Sofwave more comfortable because of its cooling, but both are tolerable with numbing cream.
Can either treat the eyes?
Thermage has a dedicated eye tip for the eyelids. Sofwave is used around the eye area for fine lines and brow lift.
When will I see results?
Some tightening may show early, but the main results build over about three months.
Sources
- Ministry of Health and Welfare, Republic of Korea – 2025 foreign patient statistics (press release, 2026).
- U.S. Food and Drug Administration – 510(k) premarket notification database (Thermage; Sofwave).
- Solta Medical – Thermage FLX product information; Sofwave Medical – SUPERB technology information.
This article is for general information only and is not medical advice. Results vary between individuals. Please consult a qualified physician before any treatment.
