Knowledge What is tri-laser hair removal? The Triple-Wavelength Solution for Comprehensive Hair Reduction
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Tech Team · Belislaser

Updated 2 days ago

What is tri-laser hair removal? The Triple-Wavelength Solution for Comprehensive Hair Reduction


Tri-laser hair removal is an advanced method of prolonged hair reduction that utilizes Surface Emitting Diode Laser (SLD) technology to target hair follicles. Unlike traditional systems that rely on a single frequency of light, this technology simultaneously emits three distinct wavelengths—755 nm (Alexandrite), 808 nm (Diode), and 1064 nm (Nd:YAG)—to treat the area.

By combining three distinct laser spectrums, tri-laser technology creates a "multi-laser" effect designed to target hair at different depths and structures. This approach aims to provide a more comprehensive treatment than single-wavelength devices.

The Core Technology: Three Wavelengths in One

The Multi-Laser Approach

The defining feature of tri-laser hair removal is the integration of three specific wavelengths into a single applicator.

The system combines the 755 nm Alexandrite, the 808 nm Diode, and the 1064 nm Nd:YAG wavelengths.

Surface Emitting Diode (SLD) Technology

These wavelengths are delivered using SLD technology.

This allows the device to emit a precise, concentrated beam of light that penetrates the skin to reach the hair follicle roots.

How It Destroys Hair

Selective Photothermolysis

The underlying principle of this treatment is a process called selective photothermolysis.

The laser directs highly concentrated light into the hair follicles, where it specifically targets the pigment known as melanin.

Thermal Conversion

Once the melanin absorbs the laser light, that energy is instantly converted into heat.

This heat is transferred directly to the regenerative structures of the hair follicle, specifically the bulb and the bulge.

Inhibiting Regrowth

The intense heat damages the cellular machinery responsible for generating new hair.

By deactivating these roots, the follicle is destroyed or significantly impaired, preventing it from growing hair in the future.

Understanding the Trade-offs

The Growth Cycle Limitation

No laser treatment, including tri-laser, can remove all hair in a single session.

The procedure is only effective when the hair follicle is in the anagen (active growth) stage.

The Necessity of Multiple Sessions

Because individual follicles cycle through growth and dormant stages at different times, only a percentage of your hair is in the anagen phase during any given treatment.

You must undergo multiple sessions spaced out over time to catch every follicle during its vulnerable growth window.

Melanin Dependency

The effectiveness of the laser is heavily dependent on the presence of pigment.

Since the laser targets melanin, the treatment is most effective on hair that is darker than the surrounding skin; hair with little to no pigment (such as grey, white, or very blonde hair) may not absorb enough heat to destroy the follicle.

Making the Right Choice for Your Goal

While tri-laser offers a robust technological approach, understanding your specific needs is vital for success.

  • If your primary focus is comprehensive coverage: The tri-laser approach is ideal because it combines three wavelengths to target different aspects of the hair structure simultaneously.
  • If your primary focus is timing: Be prepared to commit to a full schedule of treatments, as you must wait for the hair cycle to rotate to ensure all follicles are treated during their anagen phase.
  • If your primary focus is hair type: Ensure your hair has sufficient pigment (melanin) to absorb the laser energy, as the mechanism relies entirely on heat transfer via color.

Tri-laser technology represents a significant evolution in hair removal by leveraging the synergy of three proven wavelengths to deliver a more versatile treatment.

Summary Table:

Feature 755nm (Alexandrite) 808nm (Diode) 1064nm (Nd:YAG)
Target Depth Superficial (Bulge) Mid-level (Follicle) Deep (Bulb/Papilla)
Best For Thin/Light Hair All-around/Classic Darker Skin/Deep Roots
Absorption Highest Melanin Absorption Balanced Absorption Lowest Melanin/Deepest Reach
Technology SLD Precision Delivery Continuous Wave High Penetration

Elevate Your Clinic’s Treatment Standards with BELIS Technology

Are you looking to provide your clients with the most versatile hair removal solutions available? BELIS specializes in professional-grade medical aesthetic equipment designed exclusively for premium clinics and salons.

Our advanced Diode Hair Removal systems leverage the same multi-wavelength technology discussed here to ensure your clients see faster, more comprehensive results across all skin types. Beyond hair removal, our portfolio includes:

  • Laser Systems: CO2 Fractional, Nd:YAG, and Pico lasers.
  • Body Sculpting: EMSlim, Cryolipolysis, and RF Cavitation.
  • Specialized Care: HIFU, Microneedle RF, Hydrafacial systems, and Skin Testers.

Ready to upgrade your practice with industry-leading technology? Contact us today to request a quote and learn how our clinical expertise can drive your business growth.

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