Thermage: Monopolar RF Skin Tightening for Clinics
What Thermage is and how monopolar RF works
Thermage is a monopolar, capacitively-coupled radiofrequency system that heats the dermis to tighten skin. A flat surface electrode, built into a single-use treatment tip, sits against the skin and drives radiofrequency at 6.78 MHz into the tissue while the surface is cooled. The heating is volumetric: energy spreads through a zone of dermis rather than being delivered to discrete points. There are no needles and no skin penetration. Solta Medical markets the system, and two current generations exist: Thermage CPT and Thermage FLX.
This places Thermage in a different category from the needle-based and ultrasound devices a clinic may already run. The tip acts as one electrode, the disposable patient return pad completes the circuit, and a cooling cryogen protects the epidermis while the dermis takes the heat. Treatment areas in the cleared labeling include periorbital and facial wrinkles and, for the eye tip, the upper and lower eyelids. Suitability for any given case is determined by the treating practitioner.
| Attribute | Thermage |
|---|---|
| Modality | Monopolar, capacitively coupled radiofrequency |
| Energy delivery | Volumetric dermal heating through a flat surface electrode, no needles |
| Frequency | 6.78 MHz |
| FDA status | Class II, 510(k) cleared, 21 CFR 878.4400, product code GEI |
| Generations | Thermage CPT (TG-2B), Thermage FLX (TG-3A) |
| Consumable | Single-use treatment tip, metered by REP shot count |
| Manufacturer | Solta Medical |
Thermage is radiofrequency, not a laser
Buyers often search for "thermage laser skin tightening," but Thermage does not use a laser. It uses radiofrequency current passed through tissue, which produces heat by tissue resistance rather than by absorbed light. Lasers and intense pulsed light target chromophores at specific wavelengths; radiofrequency does not depend on wavelength or skin color in the same way. In practice, Thermage is bought and serviced as a radiofrequency device, and its consumables are radiofrequency treatment tips rather than optical parts.
How the FDA regulates Thermage
Thermage is regulated as a Class II device under 21 CFR 878.4400, the regulation for electrosurgical cutting and coagulation devices and accessories, with product code GEI. It reached the market through the 510(k) premarket notification pathway, which clears a device by showing it is substantially equivalent to an earlier legally marketed device. In regulatory language, Thermage is FDA cleared. Buyers sometimes ask whether it is approved by the FDA; clearance through 510(k) is a different process from premarket approval, and it is the correct description here.
The 510(k) record runs deep. The current Thermage FLX (K170758, 2017) is predicated on Thermage CPT, which traces back through the ThermaCool NXT clearance to the original ThermaCool system cleared in 2000, with the periorbital wrinkle indication arriving in 2002 and facial wrinkles added in 2005. That long predicate chain is itself a contrast with newer devices that created their own FDA category through the De Novo pathway, such as another device cleared through that route. Thermage is an old, heavily predicated 510(k) line rather than a category-creating clearance.
Thermage CPT and Thermage FLX generations
The two generations share the monopolar RF principle but differ in console and features. Thermage CPT runs on the TG-2B console and adds Comfort Pulse Technology, a vibration feature intended to improve patient comfort. Thermage FLX runs on the newer TG-3A console, introduces the AccuREP impedance-sensing feature described in manufacturer documentation, and uses a larger 4.0 cm² face tip. Both run at 6.78 MHz. Because the consoles and tips are registered separately, the generations matter for procurement, which is covered in detail in Thermage CPT vs. FLX. Clinics buying equipment can also review the consoles in the Thermage machine guide.
Treatment tips and what makes them single-use
The treatment tip is the consumable that defines Thermage economics. Each tip is a single-use surface electrode metered by shots, called REPs, and its allotment is fixed: the console counts REPs down during treatment and locks the tip out at zero. Tip families differ by surface area and treatment area, from the small 0.25 cm² eye tip to the 16.0 cm² body tip, and the shot count is recorded in each tip's FDA device listing. A reusable handpiece carries the tip, but the tip itself is for one patient only. The mechanics of the tip family and the lockout are covered in how the single-use treatment tips work.
Thermage compared with RF microneedling
Thermage and RF microneedling are both radiofrequency, which causes some confusion, but they deliver energy in opposite ways. Thermage uses one surface electrode to heat a volume of dermis through intact skin. RF microneedling drives an array of fine needles into the dermis and emits fractional radiofrequency from the needle tips, leaving the surface punctured in a grid of micro-channels. Thermage is not microneedling and uses no needles. A fuller treatment of the modality split, and where no-needle ultrasound options sit alongside it, is in how monopolar RF compares to RF microneedling.
Professionally sourced Thermage tips
Pinova carries professionally sourced Thermage treatment tips and consumables for clinics running CPT and FLX systems. Tips are single-use and generation-specific, so compatibility is based on industry-standard usage and clinical experience; verify the tip against your console and handpiece before ordering. For clinics weighing consumable cost across a year of treatments, the shot count per tip is the main variable, and that economics is set by the REP allotment rather than by the console.
Frequently asked questions
Is Thermage a laser?
No. Thermage is a monopolar radiofrequency device. It heats the dermis with radiofrequency current, not with laser light, which is why it is sold and serviced as a radiofrequency system.
Is Thermage FDA cleared or approved by the FDA?
Thermage is FDA cleared through the 510(k) pathway as a Class II device under 21 CFR 878.4400, product code GEI. Clearance through 510(k) is a separate process from premarket approval.
What is the difference between Thermage CPT and FLX?
CPT runs on the TG-2B console with Comfort Pulse vibration; FLX runs on the newer TG-3A console with the AccuREP feature and a larger 4.0 cm² face tip. Both operate at 6.78 MHz.
What areas is Thermage cleared for?
The cleared labeling covers periorbital and facial wrinkles and rhytids, with the eye tip cleared for the upper and lower eyelids. The specific suitability of any case is decided by the treating practitioner.
Are Thermage tips reusable?
No. Each treatment tip is for single-patient use and is metered by a fixed REP shot count that the console locks out at zero. The handpiece that holds the tip is reusable.
