Wavelength helps determine where light is absorbed and what research areas it has been used to study. NrG Light combines nine independently controlled channels so users can choose green, yellow, red and near-infrared light rather than being locked into one fixed spectrum.
Nanometers describe the wavelength of light. Different wavelengths interact with tissue differently, but dose, power density, distance, optical bandwidth, treatment area and target tissue all matter alongside wavelength.
NrG Light uses green, yellow and red channels across this range. Visible wavelengths are often studied for surface-oriented skin applications and cellular responses, with research questions varying substantially by color and dose.
Near-infrared light is largely invisible to the eye and is commonly used when researchers want greater tissue penetration. The amount reaching a deeper target still depends heavily on geometry, tissue composition and dose.
LEDs are specified by a peak wavelength, but their optical output spans a band around that peak. When research uses a very close source, this guide describes it by color or spectral region rather than presenting a different peak number as though it were the NrG channel.
These are research themes—not guaranteed benefits. The strength and relevance of evidence differs by wavelength and application.
| Wavelength | Region | Common research context | NrG Light context |
|---|---|---|---|
| 530 nm | Green | Skin pigmentation and complexion biology, cellular signaling and ATP-related responses, visual comfort and green-light migraine research. | 530 nm guide → |
| 590 nm | Yellow | Sensitive skin, visible redness, barrier function, melanin/complexion measures, sting response, wrinkles and photoaging research. | 590 nm guide → |
| 630 nm | Red | Skin-focused PBM, photoaging, tissue-repair and general red-light research. | Included in Aura, Aurora, Phoenix and SPARK |
| 660 nm | Red | One of the most common PBM wavelengths; studied across skin, exercise, recovery and tissue-response protocols. | Included in Aura, Aurora, Phoenix and SPARK |
| 670 nm | Deep red | Mitochondrial function, visual performance, metabolic response, exercise performance, muscle soreness and recovery research. | 670 nm guide → |
| 810 nm | Near-infrared | Widely used in deeper-tissue and transcranial PBM research. | Included in Aura, Aurora, Phoenix and SPARK |
| 830 nm | Near-infrared | Common in skin, circulation, tissue-recovery and deeper-target PBM protocols. | Included in Aura, Aurora, Phoenix and SPARK |
| 850 nm | Near-infrared | Frequently used in muscle, exercise-recovery and deeper-tissue PBM research. | Included in Aura, Aurora and Phoenix |
| 1060 nm | Extended NIR | Transcranial PBM, memory, processing speed, attention, executive function and broader cognitive-performance research. | 1060 nm guide → |
For broader PBM evidence and dose context, see Red Light 101. This table summarizes research directions rather than medical indications for NrG Light products.
These reviews help put wavelength-specific studies in context across photobiomodulation protocols.
These four pages focus on the wavelengths where search intent and NrG Light differentiation overlap most strongly.
Green-light research on skin pigmentation and complexion, ATP-related cell responses, visual comfort and migraine-related light sensitivity.
Explore 530 nm →Human skin research on sensitive skin, redness, barrier function, complexion, wrinkles and photoaging-related measures.
Explore 590 nm →Exact-wavelength human research on mitochondrial function, visual performance and metabolic response, plus performance/recovery protocols.
Explore 670 nm →NrG Light’s longest wavelength channel, positioned for deeper-tissue applications, joint and bone-related research, transcranial PBM and cognition.
Explore 1060 nm →Aura, Aurora and Phoenix let you independently adjust each wavelength from 0–100%, rather than forcing every wavelength into one fixed blend.
Independent control lets you isolate a channel, combine selected visible and near-infrared wavelengths, or use a broad preset. That flexibility is useful when a research protocol emphasizes a particular spectral region.
Intensity, time, distance, treatment area and optical geometry change the delivered exposure. A larger wavelength menu does not mean every channel should be used at maximum output for every session.