Why can't I see the lights inside my light therapy helmet?

Why can't I see the lights inside my light therapy helmet?

At Neuronic, we're committed to providing brain photobiomodulation devices designed to enhance your well-being.

One question we frequently encounter is, "Why can't I see the lights inside my light therapy helmet?" This might seem surprising, considering a lot of light therapy devices utilize visible red LEDs (620-750 nm).

Here, we will explore into the science behind Neuronic's approach and explain why invisible light plays a crucial role in our technology.

Understanding Light Therapy

Light therapy, also known as photobiomodulation, uses specific wavelengths of light to interact with cells and tissues in the body. This interaction can trigger various beneficial effects, depending on the chosen light properties.

In the context of brain health, photobiomodulation has been explored for its potential to improve cognitive function, mood regulation, and sleep quality, among others.


The Power of Near-Infrared Light

Near-infrared (NIR) light refers to wavelengths from 800 to 2,500nm. Unlike visible light, which falls within the range our eyes can detect (roughly 400-700 nm), NIR light is invisible to the human eye. This doesn't diminish its effectiveness, however. Neuronic's light therapy devices primarily utilize near-infrared (NIR) light, specifically at a wavelength of 1070 nanometers (nm).

Neuronic's brain light therapy devices use near-infrared light, which is known to offer several key benefits:

  • Targeted administration: NIR light can penetrate deeper into the scalp and skull tissues, compared to visible light, reaching crucial areas of the brain, and potentially promoting a more profound effect on brain cells [1,2];

“Near-infrared (NIR) light has the best penetration depth through soft tissue”

Credits: Teraphongphom, N. et al. (2017) [1]

  • Superior efficacy: Research suggests that a specific NIR wavelength, 1064 nm, demonstrates a clear advantage in terms of both the persistence and strength of its effects compared to other lasers [2].
  • Safety profile: Studies suggest that NIR light at appropriate intensities is generally well-tolerated and safe for most users [3].

The Role of Visible Test Lights

While the light in Neuronic helmets operates in the invisible NIR range, you might notice a few additional visible red lights illuminating during treatment. These four lights serve a crucial purpose: indicating device functionality. Their presence ensures you're receiving the light and the light therapy device is operating as intended.

Neuronic devices operate in the invisible spectrum, but its impact on your well-being is very real. By harnessing the power of near-infrared light, we aim to provide a safe, effective, and comfortable approach to brain photobiomodulation.

Neuronic's Commitment

At Neuronic, we prioritize user education. We understand that the concept of invisible light therapy might be unfamiliar.

Our light therapy masterclass explores the science behind near-infrared light therapy. Additionally, a complimentary 30-minute consultation with a Neuronic expert allows you to discuss your specific needs and have any questions answered directly. Furthermore, our user manuals and customer support team are readily available to address any questions or concerns you may have about your light therapy helmet.

If you have any further questions about your Neuronic light therapy helmet, please don't hesitate to reach out to our dedicated customer support team.


1. Teraphongphom, N., Kong, C. S., Warram, J. M., & Rosenthal, E. L. (2017). Specimen mapping in head and neck cancer using fluorescence imaging. Laryngoscope investigative otolaryngology, 2(6), 447–452. https://doi.org/10.1002/lio2.84

2. Pruitt, T., Carter, C., Wang, X., Wu, A., & Liu, H. (2022). Photobiomodulation at Different Wavelengths Boosts Mitochondrial Redox Metabolism and Hemoglobin Oxygenation: Lasers vs. Light-Emitting Diodes In Vivo. Metabolites, 12(2), 103. https://doi.org/10.3390/metabo12020103

3. Nizamutdinov, D., Ezeudu, C., Wu, E., Huang, J. H., & Yi, S. S. (2022). Transcranial near-infrared light in treatment of neurodegenerative diseases. Frontiers in pharmacology, 13, 965788. https://doi.org/10.3389/fphar.2022.965788

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