The main differences between red light and near infrared light (NIR) are their wavelength, penetration depth, and bio-effects. Below is a detailed comparison and guide on how to choose the right wavelength for your needs:
- Wavelength and penetration depth
Parameters Red light Near infrared light (NIR)
Wavelength range 600–700 nm (például. 660 nm) 700–1100 nm (például. 850 nm)
Penetration depth 1–5 mm (skin layer) 5-10 cm (izmok, csontok, ízületek)
Primary targets Skin, superficial tissues Deep tissues, organs, brain
Importance:
Red light is very beneficial for skin health (kollagén termelés, sebgyógyulás).
NIR light reaches muscles, inak, és ízületek, providing better pain relief and improved recovery.
- Bio-effects
Piros fény (például. 660nm)
Boosts collagen and elastin production → anti-aging, reduces acne/scars.
Reduce surface inflammation (például. leégés, ekcéma).
Stimulate hair follicles (for hair growth devices).
Near infrared light (például. 850nm)
Accelerate muscle repair → post-exercise recovery, relieve delayed onset muscle soreness (DOMS).
Reduce deep inflammation (például. ízületi gyulladás, tendinitis).
Enhance brain function (emerging research in neuroprotection).
- How to choose the right wavelength?
For skin and beauty
Legjobb: 660nm-es piros fény (például. for wrinkles, pattanás, rosacea).
Eszköz:
Merican Red Light Therapy Panel M1
Pain and muscle recovery
Legjobb: 850nm near infrared (or 660nm + 850nm dual wavelength).
Eszköz:
Merican Red Light Therapy Panel M2
Joints and deep tissue
Legjobb: 810nm or 850nm near infrared (can penetrate bones/tendons).
Example: Merican Red Light terápiás ágy M4N
Overall Health
Legjobb: Piros + NIR combination (például. 660nm + 850nm).
Example: Merican Red Light Therapy Bed M-MB
- Key Considerations
Dual wavelength devices (például. 660nm + 850nm) provide the broadest benefits.
Teljesítménysűrűség (≥50–100 mW/cm²) is more important than wavelength alone.
Avoid cheap devices with unproven wavelengths (ineffective or unsafe).
- Biztonsági tippek
Szemek: NIR light penetrates eyelids → wear goggles for prolonged exposure.
Ellenjavallatok: Avoid if pregnant or with active cancer (consult your doctor).
Final Tip: If unsure, choose a red/NIR combination device (például. Merican). Start with 10–15 minutes, 3–5 times per week and adjust based on results.
