Walk into a wellness clinic, browse a red light therapy website, or spend five minutes on social media, and you'll quickly discover a common theme: everyone is talking about red light therapy.
What few people are talking about is perhaps the most important question of all.
What kind of light are you actually getting?
Because despite what many brands would have you believe, not all red light is created equal.
Behind every panel is a spectrum of wavelengths, each travelling at a different depth and interacting with the body in a slightly different way. Some wavelengths are primarily associated with skin health and appearance. Others are known for their ability to penetrate deeper into muscles, joints, and tissues.
Understanding wavelengths is one of the easiest ways to separate a basic red light device from a truly advanced system.
And once you understand them, you'll never look at red light therapy in quite the same way again.
First, What Is a Wavelength?
A wavelength is simply the distance between two peaks of a light wave, measured in nanometres (nm).
Different wavelengths behave differently within the body.
Think of sunlight.
Some rays warm your skin. Others penetrate deeper. Some are visible to the eye, while others are completely invisible.
Red light therapy works in much the same way.
Certain wavelengths are absorbed closer to the surface, while others travel deeper beneath the skin.
The goal isn't necessarily to find a single "best" wavelength.
The goal is to create a spectrum capable of supporting multiple wellness objectives simultaneously.
The Red Spectrum: Supporting Skin From The Surface Up
630nm
Often associated with surface-level applications, 630nm is commonly included in devices focused on skin appearance and overall skin wellness.
Because it sits toward the lower end of the red spectrum, it is frequently used in beauty-focused treatments where light interaction occurs closer to the skin's surface.
650nm
650nm has become one of the most recognized wavelengths in the wellness industry.
It is widely used in both home and professional devices and is commonly selected as part of comprehensive skin-focused protocols.
660nm
If red light therapy had a celebrity wavelength, this would probably be it.
660nm is one of the most extensively studied wavelengths in photobiomodulation research and is commonly used in applications relating to skin health, circulation, and overall cellular support.
Many experts consider it a cornerstone wavelength within any serious red light therapy system.
670nm
Positioned slightly deeper within the red spectrum, 670nm complements other red wavelengths by broadening the range of light available to tissues near the surface.
When combined with neighbouring wavelengths, it helps create a more complete red light profile.
The Near-Infrared Spectrum: Going Beyond The Surface
While red light is visible, near-infrared light is invisible to the human eye.
Yet it represents some of the most exciting research within photobiomodulation.
810nm
810nm is one of the most researched near-infrared wavelengths available today.
Its ability to penetrate deeper beneath the skin has made it a popular choice in both research and professional wellness settings.
830nm
Many clinicians and researchers regard 830nm as one of the most versatile wavelengths in near-infrared therapy.
Its depth of penetration has led to widespread use across recovery and performance-focused applications.
850nm
Perhaps the most common near-infrared wavelength found in red light therapy devices today.
850nm has become synonymous with recovery, performance, and deep tissue support, making it a staple in many wellness routines.
Why 1060nm Is So Interesting
Most red light therapy brands stop at 850nm.
Helion doesn't.
Our devices also incorporate 1060nm, a deeper near-infrared wavelength that has attracted increasing attention within the wellness and photobiomodulation space.
While research into this wavelength continues to evolve, its ability to reach deeper tissues has generated significant interest among researchers exploring the next generation of light therapy.
Think of 1060nm as the frontier of red light therapy.
It's one of the reasons advanced systems are beginning to move beyond the traditional 660nm and 850nm combination and towards broader, more sophisticated wavelength profiles.
Rather than relying on a handful of frequencies, modern devices are increasingly embracing the idea that a diverse spectrum may provide broader support across different tissues and wellness goals.
Why More Wavelengths Often Means More Versatility
Imagine trying to paint a masterpiece with only one colour.
Could it be done?
Perhaps.
Would it capture the same depth, richness, and complexity?
Probably not.
The same principle applies to light.
Every wavelength offers something slightly different.
Some are associated with skin wellness.
Some are associated with deeper tissues.
Some complement one another.
A broader spectrum doesn't necessarily mean "better" in every circumstance, but it does provide more versatility and flexibility for users pursuing multiple goals.
The Helion Difference
Every Helion panel combines: 630nm, 650nm, 660nm, 670nm, 810nm, 830nm, 850nm, 1060nm.
This eight-wavelength approach was chosen to create a more comprehensive red and near-infrared spectrum capable of supporting skin health, recovery, performance, circulation, and overall wellbeing.
Because when it comes to red light therapy, power matters.
Consistency matters.
But wavelengths matter too.
And not all red light is created equal.
Wavelengths Matter. But They're Only Part Of The Story.
One of the biggest misconceptions in red light therapy is that wavelengths are the only thing that matter.
They're important, but they're not the whole story.
Imagine two speakers playing the exact same song.
One is a smartphone speaker.
The other is a professional concert system.
The music is identical, but the amount of energy being delivered is very different.
The same principle applies to red light therapy.
This is where irradiance comes in.
Irradiance refers to the amount of light energy delivered to a specific area of the body and is typically measured in mW/cm².
In simple terms, it helps answer a very important question:
How much usable light is actually reaching the treatment area?
A panel may contain excellent wavelengths, but if the irradiance is too low, treatments may require longer sessions to deliver the same amount of energy.
For this reason, experienced users often evaluate both:
- The wavelengths being delivered
- The irradiance of the device
when comparing red light therapy panels.
The most effective systems combine a thoughtful wavelength spectrum with sufficient irradiance to deliver those wavelengths efficiently.
References
Hamblin MR. Photobiomodulation or low-level light therapy. Journal of Biophotonics.
de Freitas LF, Hamblin MR. Proposed mechanisms of photobiomodulation. IEEE Journal of Selected Topics in Quantum Electronics.
Avci P et al. Low-level laser therapy in skin. Seminars in Cutaneous Medicine and Surgery.
Glass GE. Photobiomodulation: Mechanisms and clinical applications. Aesthetic Surgery Journal.
Liebert A et al. Photobiomodulation therapy and its effects on biological systems. Photomedicine and Laser Surgery.
This article is intended for educational purposes only and should not be considered medical advice. Red light therapy devices are not intended to diagnose, treat, cure, or prevent any disease.
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