The physiological mechanism of Deep Mode in high-energy Fractional CO2 lasers centers on delivering high-density energy through an extremely small spot diameter, typically 0.12 mm. This precision allows the laser to penetrate up to 1 mm deep into the skin, directly targeting the thick, disorganized collagen bundles found in old burn scars. By inducing micro-invasive thermal injury, the laser breaks down this rigid tissue and triggers a biological cycle that replaces chaotic scarring with organized, healthy collagen.
The core function of Deep Mode is structural reorientation. It forces the disintegration of chaotic, vertical scar tissue and facilitates the regeneration of new collagen fibers that are regularly arranged, horizontal, and parallel to the skin surface.
The Mechanics of Deep Penetration
High-Density Energy Delivery
The effectiveness of Deep Mode relies on the concentration of energy. By utilizing a 0.12 mm spot diameter, the device concentrates high-energy output into a microscopic surface area.
This high density is essential for penetrating the fibrotic tissue of old burns, which is often denser and more resistant than normal skin.
Targeted Depth Control
Unlike superficial treatments, Deep Mode is engineered to reach a depth of up to 1 mm. This depth is critical because it bypasses the epidermis to reach the reticular dermis where the bulk of the scar tissue resides.
This allows the thermal energy to impact the core structure of the scar rather than just resurfacing the outer layer.
Cellular and Structural Remodeling
Breaking Down Disorganized Collagen
Old burn scars consist of thick, disorganized collagen bundles that create stiffness and poor texture. The laser's thermal energy physically breaks down these rigid bundles through photothermolysis.
This "demolition" phase is necessary to disrupt the existing, pathological scar structure.
The Cycle of Regeneration
The thermal injury created by the laser acts as a biological signal, not just physical damage. It initiates a specific cycle of collagen regeneration and degradation.
While the primary reference highlights the structural cycle, supplementary data suggests this is driven by the release of heat shock proteins and matrix metalloproteinases, which orchestrate the healing response.
Structural Reorganization
The ultimate physiological goal is a change in fiber architecture. The healing process transforms the tissue from a disordered state into a regular arrangement.
Specifically, the new collagen fibers distribute horizontally and in parallel to the skin's surface, restoring flexibility and reducing the visual height of the scar.
Understanding the Trade-offs
Intensity vs. Healing
Because Deep Mode utilizes high-energy density to penetrate 1 mm, it creates a more significant thermal injury than superficial modes.
This micro-invasive injury is required for efficacy but necessitates a properly managed healing phase to allow the new collagen to form correctly.
Precision vs. Coverage
The small spot size (0.12 mm) offers extreme precision but treats only a fraction of the tissue at a time (Microscopic Treatment Zones).
This leaves surrounding tissue intact to aid healing, but it requires the operator to balance density and coverage to avoid excessive bulk heating.
Making the Right Choice for Your Goal
When evaluating laser protocols for scar revision, consider the specific pathology of the tissue.
- If your primary focus is reducing scar stiffness and height: Prioritize Deep Mode to break down thick, vertical collagen bundles and induce horizontal realignment.
- If your primary focus is surface texture refinement: A superficial mode may be sufficient, as Deep Mode is specifically calibrated for deeper structural remodeling.
By converting disordered, vertical fiber bundles into organized, horizontal networks, Deep Mode effectively engineers flexibility back into the skin.
Summary Table:
| Feature | Deep Mode Specifications | Physiological Impact |
|---|---|---|
| Spot Diameter | 0.12 mm (Micro-precision) | High-energy density for dense fibrotic tissue penetration |
| Penetration Depth | Up to 1.0 mm | Targets the reticular dermis to reach core scar structures |
| Primary Action | Photothermolysis | Disintegrates thick, disorganized, vertical collagen bundles |
| Biological Result | Structural Reorganization | Promotes horizontal, parallel fiber alignment and flexibility |
| Target Issue | Old Burn Scars | Reduces scar stiffness, thickness, and vertical height |
Elevate Your Clinic’s Scar Revision Capabilities with BELIS
Provide your patients with transformative results using BELIS professional-grade medical aesthetic equipment. Our advanced CO2 Fractional Laser systems feature precision Deep Mode technology specifically engineered for clinics and premium salons to treat complex pathologies like old burn scars and deep tissue remodeling.
Why Partner with BELIS?
- Advanced Laser Systems: High-energy Diode, CO2 Fractional, Nd:YAG, and Pico lasers.
- Comprehensive Solutions: From body sculpting (EMSlim, Cryolipolysis) to specialized care (HIFU, Microneedle RF, and Hydrafacial systems).
- Expert Support: Specialized tools like skin testers and hair growth machines to optimize patient consultations.
Ready to integrate the latest in structural skin remodeling into your practice? Contact us today to request a quote or consultation and see how our technology delivers superior clinical outcomes.
References
- Sang-jun Lee, Hwa Jung Ryu. Dermal Remodeling of Burn Scar by Fractional CO2 Laser. DOI: 10.1007/s00266-016-0686-x
This article is also based on technical information from Belislaser Knowledge Base .
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