If you’ve been curious about skin-tightening treatments in Korea but aren’t sure where to start, you’re not alone. One option you’ll hear about often is radiofrequency (RF) lifting, a non-surgical treatment that helps firm the skin and improve sagging. In this post, we’ll break down Perfect RF (also known as Oligio) in simple terms — what it is, how it works, who it’s for, and how it compares to Thermage.
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What is Oligio™?
Oligio™ Perfect RF (often just called Oligio RF) is a non-invasive radiofrequency (RF) lifting treatment developed in South Korea by WONTECH (원텍), a well-known Korean medical aesthetics device manufacturer. It uses monopolar RF technology to deliver heat deep into the skin’s dermal layers, which helps stimulate collagen production and tighten tissue without surgery.
Oligio is sometimes nicknamed “Little Phoenix” because it works on the same core principle as Phoenix RF. Both use monopolar RF technology to deliver volumetric heating deep into the skin. By creating an electric field through monopolar RF, energy is concentrated in the dermis and fascia layers, raising tissue temperature to approximately 40–60°C. This causes immediate collagen contraction for instant tightening, while also stimulating long-term collagen regeneration and remodeling.
Compared to light-based treatments that mainly affect the epidermis or superficial layers, Oligio is a deep tightening treatment that heats the skin from the outside inward. In this sense, it is often categorized alongside Thermage FLX, as both are monopolar RF-based lifting procedures designed to target deeper tissue layers.
Effects of Perfect Radiofrequency
Based on official data and clinical experience, Perfect Radiofrequency (Oligio) is mainly used to improve the following concerns:
Facial sagging and loss of definition, such as nasolabial folds, jowls, and a sagging jawline. It can also help with fine lines around the eyes, crow’s feet, under-eye puffiness, enlarged pores, rough skin texture, neck lines, and a double chin. In some cases, it is also used to improve mild body sagging and cellulite.
Most people notice a tightening sensation immediately after the treatment, with facial contours appearing slightly more defined and fine lines looking smoother. This initial effect comes from heat-induced collagen contraction, which temporarily firms the tissue.
Over the medium to long term (about 2 to 6 months after the procedure), deeper collagen continues to regenerate and reorganize. As a result, skin elasticity improves, sagging is reduced, and fine lines and wrinkles gradually become less noticeable.
The Difference Between Perfect RF and Phoenix RF
Perfect RF is often described as the mainstream “Korean Thermage,” while Phoenix RF (Thermage FLX) is considered the mainstream “American Thermage.” Both treatments use monopolar radiofrequency (RF) and volumetric heating technology. So what actually sets them apart?
Phoenix RF (Thermage FLX) is a fourth-generation, well-established RF lifting device with a wide range of treatment tips. Its effectiveness is widely recognized, with extensive clinical use and long-term data. Oligio Perfect RF, on the other hand, is a newer device positioned as a “monopolar RF at the Phoenix RF level.” It mainly focuses on full-face and eye-area treatment tips and is often promoted as a more comfortable and more affordable option.
Phoenix RF
Many people worry that RF treatments are painful, but Perfect RF is designed with comfort in mind. It uses an intelligent cooling system that sprays coolant the moment the handpiece touches the skin, helping keep the surface temperature comfortable. In addition, a 3D vibration system delivers gentle vibrations during RF energy output. Since the brain tends to register vibration more strongly than pain, this helps distract from discomfort.
That’s why Thermage is often associated with pain, while treatments like Perfect RF are generally considered less uncomfortable.
In terms of pricing, even though Thermage FLX in Korea is cheaper than in U.S., it is still a premium treatment due to equipment costs and licensing, and remains relatively expensive in the Korean market.
Perfect RF is different. It is developed and manufactured in Korea, which significantly lowers the cost. Compared to U.S., Perfect RF treatments in Korea are often less than half the price. Combined with the high level of experience among Korean doctors, this makes it a more budget-friendly option.
If Thermage is considered the classic flagship model, then Perfect RF can be seen as a more accessible alternative, especially for those who value comfort, shorter treatment time, and price flexibility.
[Blog] Korea "Pheonyang Radiofrequency" Price Difference / Clinic Selection Guidelines
Who Is Perfect RF Suitable For?
WONTECH Chairman of Perfect Wave R&D Company
(Source: hankyung)
Perfect Radiofrequency (Perfect RF / Oligio) is suitable for a wide age range, generally from the early 30s to the mid-to-late 50s, especially for those with more noticeable wrinkles and skin sagging.
As with Thermage, earlier treatment tends to deliver better results. In addition to improving key concerns such as sagging, nasolabial folds, and the jawline, Perfect RF can also help refine pores and improve rough skin texture. For those looking for strong lifting effects while staying within a budget, it is often considered a more cost-effective option.
However, because Perfect RF delivers relatively strong energy, anyone who has recently received facial fillers should be evaluated by a doctor beforehand. It’s also recommended to avoid high-intensity laser treatments or aggressive resurfacing procedures prior to the session, as overly thin or sensitive skin may increase the risk of adverse reactions.
Recovery Period
After the procedure, most people experience only mild redness or swelling, which usually subsides within a few hours to one day. Normal daily activities, including work or going out, can typically be resumed on the same day.
That said, proper aftercare is still important. After treatment, focus on extra moisturizing and sun protection, and avoid highly irritating skincare products, saunas, and acid-based treatments for about one week. Regular follow-up visits are also recommended to help maximize the results. Under a doctor’s evaluation, the effects can last over six months, and with proper maintenance, results may be maintained for up to 1–1.5 years.
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