Vielight Neuro Duo 4

The Neuro Duo 4 is a photobiomodulation device designed to deliver two specific brainwave-related frequencies: 40Hz gamma and 10Hz alpha. These frequencies are selected because research suggests they may influence different aspects of cognitive and neurological function.

40Hz Gamma Mode

The gamma setting emits pulsed near-infrared light at 40Hz, a frequency associated in scientific literature with attention, working memory, and certain cognitive processing patterns. Some studies in early neurostimulation research explore 40Hz for its potential connection to cognitive support and neural network activity.

10Hz Alpha Mode

The alpha setting emits light pulsed at 10Hz, a frequency commonly linked with calmness, relaxed wakefulness, and the transition toward sleep states. Alpha rhythms naturally increase during meditative or relaxed mental states, and this mode is included for users who want a gentler stimulation pattern.

Purpose of Having Two Modes

By offering both a gamma and an alpha frequency, the Neuro Duo 4 allows users to engage with two distinct patterns of neural activity:

• Gamma for cognitive engagement and mental activation

• Alpha for relaxation and reduced arousal

This makes the Duo 4 suitable for individuals who want flexibility depending on the time of day or the mental state they wish to support.

General Notes

• The device uses non-invasive near-infrared LEDs.

• Its purpose is to supplement wellness routines; it is not a medical treatment or diagnostic tool.

• Effects can vary depending on the user, frequency of use, and individual neurobiology.

The Neuro Gamma 4 is a brain photobiomodulation device that delivers near-infrared pulses at 40 Hz, which is linked with enhanced focus, memory, cognitive processing and mental energy — ideal if your goal is sharper attention and mental performance. 

The Neuro Duo 4 includes everything the Gamma has plus an additional 10 Hz alpha mode, letting you switch between gamma stimulation for focus and cognitive energy and alpha stimulation for relaxation, mood support or improved sleep, all in one device.

Basically the Neuro Gamma 4 (Gamma-only) = great for focus & brain energy. While the Neuro Duo 4 (Gamma + Alpha) gives you that extra Alpha mode helping more with relaxation, giving more flexibility depending on your needs.

Near-infrared light is nearly invisible to the naked eye, making the beam appear dimmer than its power density.

Each device comes with:

1) 1 Neuro headset
2) 1 Neuro intranasal applicator
3) 1 Charger
4) 1 Device pouch
5) 1 Silicon sleeve
6) 1 Carry case

What is the difference between the Duo, Gamma and Alpha models?
The Gamma model pulses NIR light energy at 40 Hz, which has a neuromodulating effect on Gamma neural oscillations. Theoretical brain stimulation effects are an increase of memory activity, perception, cognition.

The Alpha model pulses NIR light energy at 10 Hz. This frequency is similar to neural alpha waves. Theoretical brain stimulation effects on alpha waves have a correlation with the brain’s resting state, offering support for mental coordination, mindfulness and learning.

The Duo makes both of these pulse rates available to you – having both pulse rates brings the most benefits.

How much power do your brain photobiomodulation devices generate?
Our brain photobiomodulation devices generate sufficient power to penetrate the skull and produce statistically significant results in independent research studies.

What is the recommended usage?
The general recommended usage is to use once every other day before experimenting with more frequent usage, not exceeding once per day. For more serious cognitive impairment, the recommendation is once per day, six days a week. Please note these recommendations are theoretical, anecdotal by nature and only based on published data or ongoing clinical trials with yet unpublished results.