Quick answer: Thermage FLX and Oligio are both monopolar radiofrequency (RF) treatments that heat the deep skin to tighten it and build collagen. Thermage FLX is the original American system with a long track record. Oligio is a Korean device that many people find more comfortable. Both suit loose skin, fine lines and early sagging.
Key takeaways
- Both use monopolar RF to heat the dermis and tighten skin.
- Thermage FLX is made by Solta Medical in the United States.
- Oligio is made by WONTECH in Korea.
- Many patients find Oligio more comfortable during treatment.
- Thermage FLX has more long-term clinical data; both give gradual results.
What is Thermage FLX?
Thermage FLX is the fourth generation of Thermage, made by Solta Medical. It uses monopolar radiofrequency to heat the deep layer of the skin evenly across the face, eyes or body. The heat makes collagen fibres contract right away and then encourages new collagen over the following months. FLX uses a system called AccuREP that adjusts energy to each patient's skin, and a cooling and vibration system for comfort. Thermage has FDA clearance for wrinkles and fine lines, including around the eyes.
What is Oligio?
Oligio is a monopolar RF device made by WONTECH, a Korean company, and approved by Korea's Ministry of Food and Drug Safety. It works on the same principle as Thermage: heating the dermis to tighten skin and stimulate collagen. Oligio is designed to deliver energy in a way that feels milder, with a cooling system to protect the surface. In Korea, it is often described as a comfortable alternative to Thermage.
How do Thermage FLX and Oligio compare?
- Energy: both monopolar radiofrequency.
- Main layer: both heat the dermis and the layer just under it.
- Comfort: Thermage FLX can feel hot and sharp in short bursts; Oligio usually feels milder.
- Track record: Thermage has been used for over 20 years worldwide; Oligio is newer.
- Results: both build gradually over two to six months.
- How long results last: Thermage FLX often about a year or longer; Oligio often several months to a year.
- Best for: both suit loose skin, fine lines, crepey texture and early sagging.
Which is better for comfort?
If you are worried about pain, Oligio is often the easier choice. Many patients describe it as warm pulses rather than sharp heat. Thermage FLX has improved comfort compared with older versions, thanks to cooling and vibration, but some areas such as the jawline and forehead can still feel intense for a second. Numbing cream helps with both.
Which gives longer-lasting results?
Thermage FLX has many years of clinical use and is known for results that often last about a year, sometimes longer, from a single session. Oligio also gives good tightening, but some patients repeat it more often to keep results. The real difference depends on your skin, the energy used and the number of shots.
Which is better for the eyes?
Thermage FLX has a dedicated eye tip and FDA clearance for treating the upper and lower eyelid area, so it is a common choice for hooded eyelids and fine lines around the eyes. Oligio can also be used around the eyes with suitable tips. Your doctor will check your eye area before deciding.
Can you combine them with other treatments?
Yes. Both RF treatments pair well with Ultherapy, which lifts the deeper SMAS layer. RF tightens the skin on top, and ultrasound lifts from below. They also combine well with skin boosters such as Rejuran for skin quality. Your doctor will plan the order and timing.
What is the downtime?
Both have very little downtime. Your skin may look pink and feel warm for a few hours. Mild swelling can last a day or two. Most visitors go out the same day and can wear makeup the next day.
Is it safe?
Both are safe when used by trained doctors with genuine devices and tips. Rare risks include small burns, blisters or temporary bumps. Tell your doctor about metal implants, pacemakers or recent fillers in the area. Always check that the tip is genuine and new for your treatment.
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. Radiofrequency tightening is one of the most popular choices. If you want a proven treatment with long-lasting results, Thermage FLX is a strong option. If comfort matters most, Oligio may suit you better. A face assessment helps your doctor match the treatment to your skin.
Frequently asked questions
Is Oligio the Korean Thermage?
It is often called that because it uses similar monopolar RF, but it is a different device from a different company.
Which one hurts less?
Most people find Oligio more comfortable, though both are tolerable with numbing cream.
How many sessions do I need?
Usually one session, repeated about once a year or as your doctor suggests.
Can I have it before flying home?
Yes. Downtime is minimal, so most visitors can fly the next day.
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).
- Ministry of Food and Drug Safety, Republic of Korea – medical device approval information.
- Solta Medical – Thermage FLX product information; WONTECH – Oligio product 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.
