SEOLREIM · JOURNAL
TenTherma 400W monopolar RF lifting: differences from Thermage and Oligio and the evidence
Full translation of the Korean article. Translation checked for completeness, numerical consistency and medical meaning; separate medical review of this translation is pending. Translation updated: 2026-10-28.

TenTherma is a monopolar radiofrequency (RF) device described with a maximum output of 400W, delivering resistive heat to skin with surface cooling to improve elasticity and fine lines. 400W is a maximum device specification, not energy always delivered to skin or proof of stronger effects than Thermage or Oligio. A US FDA 510(k) equivalence determination is also not clinical approval establishing superior cosmetic outcomes; verify the actual model, tip, approval, energy, contact, and cooling plan.
Definition, benefits and precautions at a glance
| Category | What to check |
|---|---|
| Technology | Monopolar RF heat delivery, contact, and surface cooling |
| Meaning of 400W | Maximum device specification; not equivalent to actual treatment energy or effect |
| Regulation | K232992 510(k) equivalence determination; not evidence of comparative superiority |
| Recovery | Temporary warmth, redness, swelling, and tenderness are possible |
| Cautions | Check tips, contact, overlap, cooling, sensation, and implanted electronic devices |
Definitions and how the treatments work
Monopolar RF passes current between active and return electrodes, generating heat through tissue electrical resistance. Temperature distribution depends not on a single power number but tip area, pulses, contact, pressure, cooling, overlap, and skin and fat condition. It targets immediate heat-induced contraction and later remodeling, but on-screen watts and shot counts are not linearly proportional to clinical effects. Monopolar and bipolar RF, microneedle RF, and HIFU have different energy pathways.
Potential benefits and limitations
Monopolar RF studies generally report potential improvement in mild laxity and wrinkles, but devices, assessments, and samples are heterogeneous. TenTherma manufacturer materials and 510(k) documents help identify characteristics and comparison devices but do not establish superior facial-contour improvement versus Thermage or Oligio. It also does not resolve severe sagging, major volume loss, muscle-related wrinkles, and fat all at once; changes and duration vary individually.
Suitable candidates and preliminary assessment
Adults seeking nonsurgical treatment for mild laxity and fine lines may seek consultation. Disclose pacemakers, defibrillators, electronic or metal implants, metal threads or surgical materials in the treatment area, reduced sensation or neurological disease, active dermatitis, infection or wounds, recent fillers, threads or surgery, pregnancy, breastfeeding, and heat-sensitive disorders. Contraindications and permitted uses are based on the actual device’s current Korean approval and instructions.
Procedure, recovery and preparation
Examination identifies whether the cause involves skin, fat, muscle, or volume; obtain explanations of the actual model, tip, disposable status, approved areas, energy, and cooling plan. Prepare skin and treat while monitoring the return electrode, contact, warmth, and pain. Aim for area-specific responses rather than high power or many shots. Same-day return to daily activities may be possible, but redness or swelling may remain; follow advice on heat exposure, intense exercise, and restarting irritating products.

Adverse effects, contraindications and precautions
Besides warmth, pain, redness, swelling, and tenderness, poor contact, excessive overlap, or cooling problems can cause burns, blisters, pigment changes, fat atrophy, sensory changes, and contour imbalance. Report sudden severe pain or excessively hot, whitening skin immediately. Blisters, darkening skin, or persistent sensory abnormalities after treatment need same-day assessment. Do not judge safety near electronic implants or metal yourself.
Comparing TenTherma, Thermage, Oligio, and HIFU
| Method | Main goal | Key differences and precautions |
|---|---|---|
| TenTherma | Monopolar RF and surface cooling | Check 400W maximum specification, actual tip/settings, and approval |
| Thermage FLX | Monopolar RF with dedicated tips and cooling | Check genuine tips, shots, contact, and burn management |
| Oligio | Monopolar RF | Check model, tip, energy, cooling, and Korean approval |
| Ultherapy/HIFU | Focused ultrasound heating at selected depths | Energy pathway, pain, and nerve risks differ from RF |
Questions and answers for a medical consultation
The answers below are literature-based consultation questions, not a clinician interview or individual diagnosis; actual medical review remains incomplete.
Q. Is TenTherma stronger and better than Thermage because it is 400W?
A. Maximum output is not actual delivered energy, temperature, or clinical outcome. Consider each device’s pulses, tips, cooling, and studies together.
Q. Does FDA 510(k) mean the effect is proven?
A. 510(k) determines substantial equivalence to a comparison device. It does not guarantee particular outcomes or superiority to other devices.
Q. Which suits me: Thermage Korea or TenTherma Korea?
A. Choose through consultation on skin thickness, fat, sensation, budget, actual available devices and tips, independent evidence, and recovery plan.
Evidence sources and full text
TenTech official TenTherma product information (maximum 400W, monopolar RF, https://tenlaser.com/mobile/news/view?num=94&page=1), US FDA 510(k) K232992, decision date 2023-12-20 (https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfPMN/pmn.cfm?ID=K232992 ; summary https://www.accessdata.fda.gov/cdrh_docs/pdf23/K232992.pdf), small study of monopolar RF facial rejuvenation (https://pubmed.ncbi.nlm.nih.gov/21315951/). Evidence checked: 2026-10-11. Manufacturer specifications and regulatory equivalence were distinguished from clinical superiority.
SEOLREIM’s principle of consultations and procedures performed personally by the director
SEOLREIM Clinic describes consultations and procedures performed personally by the clinic director, with principles of genuine products, appropriate doses, and attentive care. Consultations begin by distinguishing skin condition and goals, then checking the products and devices actually available, approved uses, dosage or energy plans, recovery, and risks. When comparing signature Thermage, Oligio, and Ultherapy lifting, the director distinguishes skin, fat, volume, and heat/ultrasound goals. Current ownership and provision of TenTherma are unconfirmed; verify the actual model, genuine tips, approval scope, energy, and cooling plan when booking.
Booking, language, and location information for overseas visitors
Visitors seeking Gangnam dermatology, Thermage Korea, or Ultherapy Korea should compare more than device brands: request model, tip, shot/energy records, burn response, a pre-departure skin check, and contact methods after returning home. SEOLREIM Clinic is approximately 1 minute from exit 3 of Gangnam Station, on the 11th floor of the Gangnam8258 Building. Appointments can be made through the website’s KakaoTalk consultation, NAVER booking, and telephone channels. Overseas visitors comparing dermatology clinics in Gangnam, Seoul, near Gangnam Station, or elsewhere in Korea should prepare information on medications, allergies, recent procedures, and departure dates. When booking, specify your preferred language, such as Japanese, Chinese, Arabic, Mongolian, or Indonesian, and whether you need interpretation, to confirm the support actually available and its cost. Continuous consultation availability in every language and same-day procedures cannot be guaranteed. Also agree during consultation on how to contact the clinic about adverse reactions after returning home and when follow-up assessments will occur.
Authorship, review and dates
Written by: SEOLREIM content editor / Medical review of the source: completed / Review confirmed: 2026-10-23 / Published: 2026-10-11 / Updated: 2026-10-27. General medical information, not a substitute for individual diagnosis or a procedure prescription.
SEOLREIM · GANGNAM, SEOUL
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