755 nm vs 808 nm vs 1064 nm – Differences in Laser Wavelength

Wavelength selection is one of the most important technical factors when investing in professional lasers for the clinic. 755 nm, 808 nm and 1064 nm are among the most commonly used wavelengths in energy-based equipment.

The difference lies primarily in absorption, penetration depth, and clinical application.

What does nm mean?

Nanometers (nm) indicate the wavelength of the laser. The wavelength determines how the energy is absorbed by the tissue and how deeply it penetrates.

Read the technical review of 808 nm here:
https://velurex.dk/pages/808nm-teknologi-forklaret

755 nm

755 nm is closer to the visible spectrum and has high absorption in melanin.

Technically, 755 nm is characterized by:

• High melanin absorption
• More surface-level effect
• Less penetration depth than 1064 nm

This wavelength is often seen in alexandrite systems.

808 nm

808 nm is considered a technical intermediate position between 755 nm and 1064 nm.

It offers:

• Balanced penetration
• Stable energy delivery
• Wide clinical application
• Effective targeting of hair follicles

See professional 808 nm diode laser here:
https://velurex.dk/produkter/diode-laser-808nm-1600w

1064 nm

1064 nm has deeper penetration into tissue and lower absorption in melanin compared to 755 nm.

Technically, this means:

• Deeper tissue penetration
• Less surface absorption
• Often used in Nd:YAG systems

The choice of wavelength always depends on the clinic's treatment focus and technological setup.

Wavelength and regulatory requirements

Regardless of wavelength, professional lasers are often classified as Class 4.

Read about class 4 laser requirements here:
https://velurex.dk/pages/compliance-class-4-laser-krav

Read about CE and MDR here:
https://velurex.dk/pages/ce-og-mdr

What should clinics focus on?

When choosing a wavelength, clinics should not only look at the nm value, but also at:

• Energy stability
• Pulse width
• Cooling system
• Documentation
• Supplier's technical insight

Read about purchasing laser equipment here:
https://velurex.dk/pages/koeb-laserudstyr-til-klinik

Read about choosing a supplier here:
https://velurex.dk/pages/laser-leverandoer-danmark

Contact

If you would like to discuss the choice of wavelength and technical setup for your clinic, you can contact us here:
https://velurex.dk/kontakt