FAQs About Near Infrared Light

Fundamentals FAQ: Understanding Near Infrared Light

1. What exactly is Near-Infrared (NIR) Light?

Near-infrared light is a specific part of the electromagnetic spectrum located just beyond what the human eye can see.¹ While visible red light stops at about 700nm, near-infrared starts at 750nm and goes up to 1,200nm.

• The "Invisible" Healer: It is a form of light energy that we feel as a gentle warmth, but its primary power lies in its ability to penetrate deep into human tissue.

2. How is Near Infrared Light different from a heat lamp or sunlight?

• Sunlight: Contains UV rays (which can burn) and a wide range of other lights.

• Heat Lamps: Use "Far-Infrared" to move water molecules and create heat.

• NIR Therapy: Uses "Narrow-Band" LEDs to deliver a concentrated dose of one or two specific wavelengths. This is photochemical (like photosynthesis in plants) rather than thermal. It changes the chemistry of your cells without burning the skin.

3. What are the primary uses for Near-Infrared Light?

NASA's research and subsequent clinical trials have identified four "pillars" of use for Near Infrared Light

:

1. Tissue Repair: Speeding up the healing of wounds, burns, and surgical incisions.⁴

2. Muscle & Recovery: Reducing "DOMS" (delayed onset muscle soreness) and repairing muscle tears.

3. Inflammation & Pain: Managing chronic joint pain, arthritis, and tendonitis.

4. Skin Health: Boosting collagen to reduce wrinkles and treating deep-seated acne.

4. Is Near Infrared Light the same as "Red Light Therapy"?

They are cousins, often used together.

• Red Light (600–700nm): Great for surface issues like skin glow, hair growth, and shallow wounds.

• Near-Infrared (700–1100nm): The "heavy lifter" that reaches the "deep" stuff—muscles, organs, and even brain tissue.⁹ Most "NASA-grade" devices use a combination of both for a total body effect.

5. Is Near Infrared Light safe? Does it have side effects?

Near-infrared light is non-ionizing, meaning it does not have enough energy to damage DNA or cause cancer.

• Side Effects: They are rare and usually mild, such as temporary redness or a "tight" feeling in the skin.

• The NASA Safety Standard: Because it is non-invasive and drug-free, NASA viewed Near Infrared Light as a primary tool for keeping astronauts healthy without the side effects of pharmaceutical painkillers.