As interest in light therapy grows, so does the amount of confusion surrounding near-infrared (NIR) and infrared (IR) wavelengths. TikTok trends, beauty forums and wellness claims often mix facts with fiction — so let’s bring clarity, backed by what is actually known from dermatology and photobiomodulation research.
Near-Infrared & Infrared Light Therapy: Myths, Facts & What the Science Really Says
Near-infrared and infrared light therapy are becoming increasingly popular, especially as people look for deeper, more targeted support for skin wellbeing. Yet many questions remain: Do these wavelengths really reach deeper layers? Are they safe? Are they the same as red light?
This article builds on our previous LED blogs by separating myths from facts — giving you a realistic, science-aligned view of what NIR and IR can (and cannot) do for your skin.
Myth 1: “Near-infrared is just another form of red light.”
It’s understandable why people think this — both are used in LED devices, and both fall within the “therapeutic light window.”
But they are not the same.
What’s the difference?
- Red light: ~630–670 nm (visible)
- Near-infrared: ~780–940 nm (invisible)
The key difference is penetration depth.
Red light stays closer to the surface, while NIR reaches deeper into the dermal layers. This is why NIR is often associated with supporting firmness, resilience and recovery processes.
Myth 2: “Infrared light is dangerous for the skin or brain.”
This myth usually comes from confusing sun-derived infrared heat with LED infrared light, which is fundamentally different.
LED infrared is:
- non-thermal (no heat damage)
- UV-free
- gentle and low-intensity
- supported by dermatology literature as low-risk when used correctly
Medical sources emphasize that LED infrared does not behave like infrared saunas or industrial heat sources. LED devices emit controlled light energy, not high-heat radiation.
So no — LED infrared does not “burn the skin” and does not reach or affect the brain.
Myth 3: “More nm means better results.”
Higher nm does not equal better or stronger effects.
Each wavelength has a specific job:
- Red (630–670 nm) → upper skin layers
- NIR (780–940 nm) → deeper dermal support
- IR (1000–1100 nm) → deepest comfort and wellness-oriented support
More nm is simply longer wavelength, not more power.
A balanced combination often makes more sense than chasing the highest nm number.
Myth 4: “LED light therapy delivers instant results.”
LED works with the skin’s natural rhythms — not against them.
Because it supports processes like balance, calmness and cellular energy, changes may feel subtle at first.
Dermatologists often describe LED as a gentle, cumulative approach.
Consistent use matters more than intensity or frequency — and results build gradually, not overnight.
Myth 5: “Infrared replaces skincare or professional treatments.”
LED supports what you’re already doing — it doesn’t substitute:
- moisturizers
- antioxidants
- SPF
- professional treatments
- a balanced lifestyle
Think of NIR and IR as enhancers, not replacements.
What the Science Actually Shows
Across dermatology and photobiomodulation research, NIR and IR light therapy are commonly associated with:
- supporting natural recovery processes
- helping calm visible redness
- assisting skin comfort and balance
- reaching deeper layers without irritation
- remaining gentle for most skin types
The consensus across clinical literature?
LED wavelengths in the red–infrared spectrum are considered safe, low-risk and supportive when used as directed.
Choosing a Safe NIR/IR Device
When exploring at-home LED devices, consider:
- validated wavelengths (specific nm ranges)
- a heat-free design
- comfortable, flexible fit
- even and consistent light distribution
A multi-wavelength device — such as the LED Light Therapy Face Mask from Andro + Niki — includes red, near-infrared and infrared light to support multiple layers of skin and offer a more well-rounded experience.
Conclusion
Near-infrared and infrared light therapy are powerful tools when understood correctly. They are not quick fixes, not miracle solutions and not replacements for a well-rounded routine. But they offer valuable, gentle support for skin comfort, balance and long-term wellbeing.
To learn more about LED therapy, explore:
