CET vs RET: Understanding the Difference in TECAR Therapy
What Is TECAR Therapy and How Do CET & RET Fit In?
TECAR therapy stands for “Transfer of Energy Capacitive and Resistive” and is a form of high-frequency diathermy using radiofrequency energy (usually around 448kHz) to promote healing, reduce pain, and enhance tissue regeneration. CET (Capacitive Electric Transfer) and RET (Resistive Electric Transfer) are the two modes within TECAR therapy. Each mode targets different tissue types and depths:
| Mode | Target Tissue | Penetration Depth |
|---|---|---|
| CET | Superficial (skin, lymph, vascular tissue) | Shallow (0.5–2 cm) |
| RET | Deep (muscles, tendons, bones) | Deeper (3–6 cm) |
How CET and RET Work Differently in Practice
CET mode uses an insulated electrode that generates heat through dielectric current, working well on areas with high water content—ideal for detox, circulation, and firming. RET mode uses an uninsulated electrode, driving energy deeper into high-resistance structures for muscle relaxation, joint mobility, and chronic pain relief. This makes the two modes complementary in a clinical or beauty setting.
| Therapy Mode | Best Used For |
|---|---|
| CET | Lymphatic drainage, anti-aging, vascular rehab |
| RET | Chronic joint pain, stiffness, muscle injuries |
Choosing Between CET and RET for Treatment Goals
When building treatment protocols, it's essential to choose the right mode depending on the client’s needs. Here’s a quick guideline:
- Choose CET when working on puffiness, tired legs, facial lifting, or post-op detox
- Choose RET when dealing with deep muscle fatigue, limited joint mobility, or fibrotic tissue
- Alternate CET and RET in sessions to create surface-to-deep synergy
Some advanced RET-CET machines allow switching between modes in one session for maximum results.
| Client Condition | Recommended Mode |
|---|---|
| Water retention in legs | CET |
| Chronic back pain | RET |
| Skin tightening on arms | CET + RET |
Conclusion: Mastering TECAR Modes for Better Client Outcomes
Both CET and RET are essential tools in the TECAR therapy toolbox. Mastering their use enables therapists and estheticians to deliver targeted, customized, and effective results for pain relief, mobility, and beauty goals. Explore our dual-mode TECAR Therapy device designed for professional results in both physiotherapy and aesthetic care.
📞 Need a mode-selection cheat sheet for your team?
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