First published 2023-10-28 / Last reviewed 2026-05-28
This is a guide to TuneFace compiled by Dr. Choi Byeong-geun of SHINE U Clinic Konkuk (3 minutes walk from Konkuk Univ. Station Exit 1).
Even with the same radiofrequency (RF), unipolar and bipolar methods generate heat differently. Understanding this difference makes it easier to grasp why these two devices are combined, and how RF and ultrasound differ when treating fat. In this article, we will compare TuneFace and InMode Forma and explain their principles.
Unipolar vs. Bipolar Comparison
| Category | TuneFace (Unipolar) | InMode Forma (Bipolar) |
|---|---|---|
| Heat Generation | Rotates water molecules to generate heat | Transfers heat via current between positive and negative poles |
| Primary Role | Dermal layer contraction and collagen production | Dermal stimulation plus application to fatty areas |
| Features | Overall facial elasticity | HVP (High Voltage Pulse) technology |
Even though both use radiofrequency, their mechanisms of action differ, so using them together can address elasticity and contour separately.
How TuneFace Generates Heat
TuneFace uses unipolar radiofrequency to rotate water molecules in the skin, generating heat. This heat is utilized to contract the skin and induce collagen production, thereby promoting overall facial elasticity.
InMode Forma's HVP Technology
InMode Forma uses bipolar radiofrequency, enhanced with HVP (High Voltage Pulse) technology. Along with RF heat, electrical stimulation is delivered to target unwanted fat cells, making it suitable for areas with more fat, such as a double chin or jowls.
Consult us if you're curious about the right combination for your skin
When Using Both Radiofrequencies Together
Both methods allow for customized application, and when used together, they can promote dermal elasticity while refining the facial contour. However, InMode Forma may cause bruising, so it is advisable to consider the recovery period.
Differences Between Radiofrequency and Ultrasound for Fat Treatment
Ultrasound methods can also be added for fatty areas. TuneLiner does not focus heat on a single point like HIFU; instead, it applies both longitudinal waves containing heat and transverse waves containing physical vibrations to target fat cells.
- Radiofrequency acts on fatty areas with electricity and heat.
- 3D ultrasound acts on fat cells with vibrations.
- Dead fat cells are expelled from the body via the lymphatic system.
Which method is suitable depends on fat distribution and skin condition, so the combination is determined based on diagnosis.
Conclusion
Unipolar and bipolar radiofrequency, as well as ultrasound, are tools with different mechanisms of action. The appropriate combination varies depending on the condition of the skin and fat, so a diagnosis comes first.
Inquire if you're curious about elasticity and contour combinations
Related information can be found in the guides for TuneFace, InMode Forma, and TuneLiner.
Authored by: Dr. Choi Byeong-geun (Chief Director of SHINE U Clinic Konkuk / Member of the Korean Society for Laser Dermatology and Hair, Korean Academy of Aesthetic Plastic Surgery and Laser Medicine, Korean Filler Society, etc.) Last Reviewed: 2026-05-28
This article provides general information about procedures and does not substitute for diagnosis or treatment. The suitability and results of procedures may vary by individual.