It suits jawline and double-chin laxity and holds 1 to 2 years, but advanced sagging usually needs a partner procedure. Check your area first.
Published -
Updated -

Author
Wi Young-jin · Chief director
Seoul National University College of Medicine · Seoul National University Hospital Specialist
→
When you are on the fence about getting Thermage FLX, the most confusing part is often, "Everyone around me says it's great, but will it work for me too?" To get straight to the point, there is no single treatment that is perfect for everyone; a truly satisfying result only happens when your unique skin type, specific concerns, and personal schedule all align perfectly.
This content compiles helpful treatment information provided by Beautystone Clinic.
Thermage FLX is a Monopolar RF* Treatment — What Kind of Results Can You Expect?
Thermage FLX is a non-invasive lifting treatment that delivers monopolar RF energy deep into the dermal layer to induce collagen contraction and regeneration. Even the manufacturer's official data explains that "results appear gradually over 2 to 6 months after a single treatment, and typically last for 1 to 2 years."
There are two key takeaways here:
Single-Session Treatment — Generally, you receive the treatment once, and then consider a touch-up session 1 to 2 years later.
Gradual Results — Your new look won't appear instantly; changes are designed to be evaluated progressively over time.
This makes it slightly different in nature from other lifting treatments like Shurink or Ulthera. Instead of requiring a cumulative series of visits, it falls into a category that delivers a powerful, singular stimulation in one go. *Monopolar RF: A method that delivers RF energy deep into the skin using a single electrode. It stimulates deeper layers than bipolar RF (which uses two electrodes).

Criterion ①: The Area and Degree of Your Skin Laxity
Thermage FLX is highly effective, but it shines best on specific areas and certain levels of sagging. It all depends on which areas catch your eye the most when you look in the mirror:
Area & Concern | Thermage FLX Suitability |
|---|---|
Loss of definition in the jawline and double chin | Highly Suitable |
Sagging cheeks and outer cheekbones | Suitable |
Fine lines around the eyes / eye zone | Suitable (using a dedicated Eye Tip) |
Neck wrinkles and sagging | Suitable |
Deep nasolabial folds | Partially Suitable (combining with dermal fillers is recommended) |
Severe sagging (mid-50s and older) | Inconclusive as a standalone treatment; combining with other procedures is recommended |
If you are looking to define your overall facial contours, sharpen your jawline, or refresh your eye area, you are an excellent candidate. If you have very severe sagging, a single session may not be quite enough to achieve your desired goals.

Criterion ②: Your Schedule and Downtime Preferences
Thermage FLX requires virtually no downtime. This makes it incredibly convenient if you have a busy lifestyle or an upcoming trip:
Timeline | What to Expect & Recommended Activity |
|---|---|
Day of Treatment | The procedure takes about 1.5 to 2 hours. You may experience light redness immediately afterward. |
Day After Treatment | You can return to almost all of your daily routines right away. |
Week 1 | Practically no visible traces of the treatment remain. |
Months 2 to 6 | The window where your beautiful, gradual results begin to shine through. |
However, because it is not performed as a series, it takes a little time to fully appreciate the final results. If you are thinking, "I want to look my best for a special event next year," we recommend scheduling your session about 6 months in advance to be safe.

Criterion ③: Your Health Status and Contraindications
There are a few instances where Thermage FLX may not be recommended. Please review these checklist items before scheduling your treatment:
Category | Details |
|---|---|
Pregnancy & Breastfeeding | Insufficient safety data available |
Pacemakers & Implantable Medical Devices | A general contraindication for RF-based procedures |
Active inflammation or infection on the treatment area | Can put unnecessary stress on your skin |
History of keloid scarring | The healing process and final outcome can be difficult to predict |
Other invasive treatments in the same area within 6 months | Overlapping recovery periods may stress the skin |
Please consult with our medical team immediately if:
You are taking anticoagulants, high-dose Vitamin E, or aspirin
You have been diagnosed with a thyroid disorder
You have a history of drug allergies
If any of the above apply to you, it is safest to discuss your eligibility and the best timing for the treatment with a medical professional before moving forward.

Frequently Asked Questions
Q. How many years does the effect last after a single treatment?
A. Many of our clients enjoy visible results that last for 1 to 2 years. However, this window can vary depending on your personal rate of aging, sun exposure, weight changes, and daily habits. It is natural to consider a touch-up session once you feel the lifting effects have begun to gently fade.
Q. How does it compare to Shurink or Ulthera?
A. They work on different principles. Thermage FLX uses RF (Radiofrequency), while Shurink and Ulthera use ultrasound. Because they target different depths and offer slightly different styles of results, your choice will depend on your specific skin concerns, timeline, and budget. Typically, clients who prefer a powerful, single-session treatment lean toward Thermage, while those who prefer a gentler, multi-session routine tend to choose Shurink.
Q. How painful is the procedure?
A. While individual tolerance varies, most clients describe it as a "tingling sensation that turns warm." Many find it very manageable when paired with our soothing numbing cream and guided breathing techniques. If you have a lower pain threshold, please let our medical team know beforehand so we can customize your comfort plan.
This article is for general informational purposes only. Please consult with our licensed medical staff to determine if this treatment is safe and suitable for your unique skin.
Recommended Reads

Contouring & Volume
InMode Cost: Why One Area, Three Line Items

Hair Removal
수염 레이저 제모 가격, 회당 금액이 같은데 총액이 갈리는 이유는?

skin
Fraxel Results: Why 3 Months Is the Real Test

Lifting
이중턱·턱선리프팅, 다섯 층 중 어디가 문제인지 아세요?

Contouring & Volume
Juvederm Lip Filler: Volbella vs. Ultra

skin
How Long Does Potenza Take to Show Results?



