The 1320 nm wavelength laser functions as a deep-acting thermal agent designed to restructure the skin's foundation. By utilizing a lower water absorption rate than alternative wavelengths (such as 1440 nm), it bypasses superficial layers to penetrate into the deep dermis. Once there, it generates thermal energy to coagulate collagen fibers, triggering a healing response that builds new collagen to resolve deep wrinkles and skin laxity.
Core Takeaway The 1320 nm laser is defined by its ability to balance depth with thermal intensity. It sacrifices high surface absorption to reach the deep dermis, where it stimulates neocollagenesis (new collagen production) to tighten skin and smooth structural lines from the inside out.
The Mechanics of Penetration
Absorption Dictates Depth
To understand why the 1320 nm wavelength is effective for deep remodeling, you must look at its relationship with water.
The 1320 nm wavelength has a lower water absorption rate compared to the 1440 nm wavelength.
Because it is not immediately absorbed by the water content in the upper skin layers, the energy is able to travel further down. This allows the laser to access the deep dermis, a critical zone for structural skin integrity.
Thermal Coagulation
Once the laser energy reaches the deep dermis, its primary mechanism of action is thermal coagulation.
The laser heats the existing collagen fibers found in these deeper layers. This controlled thermal effect is the catalyst for the remodeling process.
Biological Response and Results
Inducing Neocollagenesis
The immediate coagulation of collagen fibers triggers a biological repair signal.
The body perceives this thermal effect as a "controlled injury" and responds by initiating neocollagenesis, or the synthesis of new collagen.
This is not a temporary swelling effect; it is a long-term physiological change where the body actively rebuilds its structural support matrix.
Targeting Structural Defects
Because this remodeling occurs deep within the skin, the clinical results are structural rather than superficial.
This process is specifically utilized to significantly improve deep wrinkles.
Furthermore, the tightening effect of new collagen formation addresses skin laxity, providing a firming effect that superficial treatments cannot achieve.
Understanding the Trade-offs
Depth vs. Surface Precision
While the 1320 nm laser excels at deep remodeling, it is important to recognize the trade-off inherent in its physics.
By design, this wavelength absorbs less in water than the 1440 nm wavelength.
This means it is less effective for treating very superficial textural irregularities that require high absorption in the uppermost layers of the epidermis. Its utility is maximized when the goal is volumetric heating and deep structural repair, rather than surface polishing.
Making the Right Choice for Your Goal
The utility of the 1320 nm laser depends entirely on the specific pathology you are trying to address.
- If your primary focus is Deep Wrinkle Correction: The 1320 nm wavelength is ideal because it stimulates collagen synthesis at the depth where deep lines originate.
- If your primary focus is Skin Tightening (Laxity): This wavelength provides the necessary deep thermal coagulation to tighten the dermal matrix and combat looseness.
Ultimately, the 1320 nm laser is a tool for foundational repair, rebuilding the skin's architecture from the deep dermis upward.
Summary Table:
| Feature | 1320 nm Laser Characteristics |
|---|---|
| Primary Target | Deep Dermis (Structural Support) |
| Mechanism | Thermal Coagulation & Neocollagenesis |
| Water Absorption | Lower (allows for deeper penetration vs. 1440 nm) |
| Primary Benefits | Deep wrinkle reduction, skin tightening, structural repair |
| Ideal Application | Skin laxity and foundational dermal remodeling |
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References
- А. А. Кубанова, Natalia Mikhailova. Skin rejuvenation with the use of fractional photothermolysis(MultiPlex technology) in a combination with the CAP system. DOI: 10.25208/vdv998
This article is also based on technical information from Belislaser Knowledge Base .
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