Slimming vs Skin Tightening: When to Use CET vs RET
Understanding the CET and RET Modes in RET‑CET Technology
RET‑CET machines use dual radiofrequency (RF) modes—CET (Capacitive Electric Transfer) and RET (Resistive Electric Transfer)—to deliver tailored body and facial treatments. While they both operate at the same frequency (usually 448kHz), they penetrate tissue differently. CET is ideal for superficial tissues such as skin, lymphatic vessels, and the vascular system. RET, on the other hand, targets deeper, higher-resistance structures like muscles, tendons, and fatty layers.
| Mode | Penetration | Main Application |
|---|---|---|
| CET | Shallow (0.5–2 cm) | Skin firming, circulation, detox |
| RET | Deep (3–6 cm) | Fat reduction, muscle stimulation |
When to Use CET for Skin Tightening and Drainage
If the client’s main concern is loose skin, poor tone, or swelling, CET is the better choice. It enhances microcirculation, stimulates collagen production in the dermis, and improves skin texture. CET is especially beneficial for:
- Postpartum or post-weight-loss skin laxity
- Facial lifting and tightening
- Clients with water retention or sluggish lymph flow
| Skin Concern | CET Mode Result |
|---|---|
| Sagging cheeks or jawline | Improved tone, lifted contour |
| Puffy eyes or jowls | Fluid drainage and sculpting |
| Lax skin on arms or abdomen | Firmer appearance |
When to Use RET for Fat Reduction and Muscle Toning
RET mode penetrates deeper and is designed for slimming, contouring, and tissue restructuring. It gently heats resistant structures such as fat and fascia, encouraging lipolysis and collagen remodeling. RET is best used for:
- Body contouring on abdomen, thighs, arms, and flanks
- Deep cellulite smoothing
- Muscle stimulation and recovery
| Fat Zone | RET Mode Benefit |
|---|---|
| Lower belly | Reduces fat + firms fascia |
| Inner thighs | Improves cellulite and contour |
| Upper arms | Slims while tightening skin |
Conclusion: The Right Mode for the Right Result
To deliver visible slimming and firming effects, therapists must distinguish when to use CET for surface-level improvements and when to deploy RET for deeper fat reduction. Our RET CET Technology offers the flexibility and precision required for all body types and treatment goals.
📞 Want a treatment planner that maps CET/RET by zone?
Email sophia@kmslaser.com or WhatsApp +86 18676839070



