Coolfase is a high-power monopolar radiofrequency device with direct cooling, available in Brazil, that treats sagging skin and stimulates collagen without cuts, needles, or recovery time — the same technology category as Thermage. If you've searched for "Thermage" and want to understand what options are available in Brazil, this guide explains how monopolar radiofrequency works, what differentiates each device, and how to choose safely.
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Dermatologist at Nova América
What is monopolar radiofrequency?
Monopolar radiofrequency is a technology that uses electromagnetic energy to heat the deeper layers of the skin in a controlled manner. As this energy passes through the tissue, it generates heat through resistance—the so-called Joule effect.
The goal is not to "burn" the skin, but rather to reach a precise temperature range that causes... two effects at the same time:
- Immediate contraction from existing collagen fibers, with a tightening effect noticeable immediately after the session.
- Neocollagenesis — stimulation of fibroblasts, which then produce new collagen fibers over the following weeks and months, resulting in progressive and lasting firmness.
Unlike microfocused ultrasound (Ultherapy, HIFU, Liftera), which creates focal points of heat at specific depths, monopolar radiofrequency produces a broader and more diffuse volumetric heating of the dermis. That's why the two technology families are frequently complementaryThey are not competitors: one works on the overall quality and firmness of the skin, the other on the structural lifting effect.
- CoolFase: the innovative technology for needle-free facial rejuvenation | Click here!
- Coolphase Price Click here!
What is Thermage?
Thermage is the device that popularized monopolar radiofrequency worldwide. Manufactured by Solta Medical, it It received approval from the American FDA in 2002. for the treatment of wrinkles and sagging skin, and has since undergone several generations of improvements.
Its main characteristics:
- Use monopolar capacitive radiofrequency, with surface cooling to protect the epidermis while warming the deeper layers.
- It is the only monopolar radiofrequency device cleared by the FDA for use in both both on the face and body, including the delicate eyelid area..
- Works with a protocol usually for a single session., with long intervals between applications.
- The most recent version, the Thermage FLXIt features AccuREP™ automatic energy calibration technology, a larger 4,0 cm² handpiece that makes the procedure about 25% faster, as well as integrated cooling and vibration that greatly improve comfort.
- A session lasts on average 30 to 90 minutes, with noticeable initial results and continuous improvement over the following months.
It is worth noting an honest historical fact: the first generations of Thermage They were considerably more painful, which generated resistance among patients at the time. Current versions, with integrated cooling and vibration, are much more comfortable than that first phase.
Coolfase – Face
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3.690
6.890
What is Coolphase?
Coolphase is a high-power monopolar radio frequency developed in South Korea, which has become one of the leading options in Brazilian dermatology for treating sagging skin.
It works on the same biological principle: it heats the deeper layers of the skin in a controlled manner, activating fibroblasts and triggering neocollagenesis, with immediate contraction of existing fibers and progressive formation of new collagen.
Its main technical advantage is... DCC™ (Direct Cooling Control) direct cooling systemWhile radiofrequency heats the deep dermis, the system continuously cools the skin's surface. In practice, this means two important things:
- More comfort during the session., with a pleasantly tolerable temperature sensation.
- More safetyBecause the epidermis is protected from the heat, reducing the risk of superficial burns and allowing you to work with high power where it really matters — in depth.
Coolfase is indicated for both the face (sagging, facial contour, texture, fine wrinkles) and the body (arms, abdomen, thighs), without needles, without cuts and without recovery time.
Thermage vs. Coolfase: An Honest Comparison
| Feature | Thermage / Thermage FLX | Coolfase |
|---|---|---|
| Energy type | Monopolar capacitive radiofrequency | High-power monopolar radiofrequency |
| Source | United States (Solta Medical) | South Korea |
| Cooling | Surface cooling + vibration (FLX) | Continuous direct cooling (DCC™) |
| Typical protocol | Usually a single session, with long intervals. | Protocol defined in medical evaluation |
| session duration | ~30–90 min | Defined according to the area treated. |
| recovery time | No | No |
| Face + body | Yes (including eyelids) | Yes |
| History and evidence | Longest-running on the market (since 2002) | Latest generation technology |
The correct way to read this table: Both are legitimate and effective monopolar radiofrequency devices, with different strengths. Thermage has the longer history and the largest body of accumulated evidence. Coolfase is a newer generation platform whose direct cooling system is designed to deliver power with comfort and protection of the skin surface.
There is no universally "best" device. There is the device that is most suitable for the individual. his The degree of sagging, the thickness of your skin, your goal, and your budget—and this definition is medical.
The machine doesn't produce the result.
This is the most important part of this text.
In monopolar radiofrequency, The same device can produce excellent or disappointing results. Depending on the assessment, the parameters chosen, the number of shots, the mapping of the areas, and the application technique, there is no universal protocol suitable for all patients.
Therefore, the decision should not be made based on the machine's name. It should be made by... medical consultation, strategy and executionAsking “what is the best device?” is the wrong question. The right question is: “what is the best strategy for my face, and who will implement it?”
Who is monopolar radiofrequency indicated for?
Monopolar radiofrequency works best for mild to moderate sagging and to improve skin quality:
- Initial facial sagging and loss of contour definition.
- Improved skin texture and thickness.
- Fine wrinkles and expression lines
- Body sagging (arms, abdomen, thighs)
- Prevention and maintenance of firmness over time.
Ela not It replaces surgery in cases of advanced sagging, where surgical lifting remains the gold standard. In many cases, the best result comes from... combination between radiofrequency, microfocused ultrasound, and collagen biostimulators — each technology acts on the layer and problem where it is most effective.
What to Expect From Treatment
You can expect an in-office session. no recovery timeIt's common to notice a slight tightening effect immediately after application, resulting from the immediate contraction of the fibers. The most significant result, however, builds up gradually over the following months as the new collagen organizes itself—a progressive and natural improvement, not an overnight transformation.
Results vary depending on age, skin type, degree of sagging, and lifestyle habits.
Why Choose Dr. Renata Ralha?
Dr. Renata Ralha is Dermatologist in Rio de Janeiro [CRM 52-84102-1 – RQE: 28115], with years of experience. dedicated to the non-surgical treatment of sagging skin and collagen-stimulating technologies.
Her practice is based on individualized assessment: instead of advocating for a single device, she selects and combines technologies—monopolar radiofrequency, microfocused ultrasound, biostimulators—according to the anatomy, skin type, and goals of each patient. Every procedure is performed under direct medical evaluation and supervision, a safety standard that distinguishes medically-led dermatology from non-medical aesthetic centers.
The clinic brings together Over 700 5-star reviews on Google., reflecting a consistent pattern of care and natural results.
Patient Care for Patients from Outside Rio and Abroad
We frequently receive patients from other states, Brazilians living abroad, and international patients.
- Preliminary assessment via videoTo confirm the recommendation and put together the plan before the trip, reducing the number of days needed in Rio.
- Treatment with no recovery time. — You can enjoy the trip normally on the same day, without bandages or rest.
- Optimized schedule For those coming from abroad, fitting the procedure into a short stay.
- Service also available in English and Spanish.
Do you live abroad and are going to visit Brazil? Monopolar radiofrequency is one of the most cost-effective treatments to take advantage of during your trip: high clinical relevance, no downtime, and no interference with your plans.
- CoolFase or XERF: which monopolar radiofrequency is the better value? Click here!
- CoolFase or Sculptra? Understand the Differences and Benefits of Each Treatment | Click here!
- Can someone who has already used biostimulators use CoolFase? Click here!
- Coolphase Price Click here!
Combined Coolfase: the gold standard protocol for rejuvenation.
Coolfase delivers excellent results on its own — but it shines even brighter when combined with a integrated protocolIn my office, I combine [measurements] with:
- Liftera 2 (Microfocused ultrasound) — deep SMAS support + Coolfase works on superficial firmness.
- Biostimulators (Sculptra, Radiesse) — structural collagen replacement
- Botulinum toxin — smoothing of dynamic marks
- Profhilo / Skinbooster — hydration and shine
- Prescribed skincare — daily basis to support the result
This combined approach is what delivers the result: "She takes care of herself, but she seems like herself" — natural, elegant and durable.
Medical evaluation is essential to understand the patient's complaints, identify dermatological problems, and consider their individual characteristics, such as anatomy, skin type, and reactions to substances used. Based on this, it is possible to determine the appropriate techniques to naturally enhance the features of the face, skin, and body.
Choosing a dermatologist is crucial for a thorough analysis of the areas of disharmony in the patient and to determine the necessary techniques, whether it be increasing volume, correcting angles, or symmetry. With a personalized and exclusive treatment plan, it is possible to meet the specific needs of each patient while respecting their limitations.
Dr. Renata Ralha, Clinical, Aesthetic and Hair Dermatologist, CRM: 52-84102-1 RJ, RQE No.: 28115
No. They are different devices, from different manufacturers, but they belong to the same technology category: monopolar radiofrequency for treating sagging skin. Thermage is American and has the longest history on the market; Coolfase is Korean, a more recent generation, with a DCC™ direct cooling system.
Modern versions are well tolerated. In Coolfase, continuous direct cooling protects the skin's surface and makes the session comfortable. In Thermage FLX, integrated cooling and vibration have significantly improved comfort compared to earlier generations of the device.
It depends on the device and, mainly, on your specific case. Thermage usually works with a single-session protocol and long intervals. With Coolfase, the number of sessions is determined through a medical evaluation according to the degree of sagging and the treatment objective.
Contents of
They work in different ways and are often combined. Radiofrequency generates broad volumetric heating, improving skin quality and firmness; microfocused ultrasound creates focal points at specific depths, with a more structural lifting effect. The decision of what to use—or how to combine them—is made during the consultation.
No. There are no cuts or needles, and you can resume your normal activities immediately.
Yes, Thermage is available in Brazil, as are Coolfase and other monopolar radiofrequency devices. What determines the best course of action isn't the availability of the device, but its correct indication for your specific case.
Medical evaluation is essential to understand the patient's complaints, identify dermatological problems, and consider their individual characteristics, such as anatomy, skin type, and reactions to substances used. Based on this, it is possible to determine the appropriate techniques to naturally enhance the features of the face, skin, and body.
Choosing a dermatologist is crucial for a thorough analysis of the areas of disharmony in the patient and to determine the necessary techniques, whether it be increasing volume, correcting angles, or symmetry. With a personalized and exclusive treatment plan, it is possible to meet the specific needs of each patient while respecting their limitations.
Dr. Renata Ralha, Clinical, Aesthetic and Hair Dermatologist, CRM: 52-84102-1 RJ, RQE No.: 28115
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